_content: Breadcrumbs added to children pages.

Added to all doc children page with doclayout.
Added to Why Go pages.
Added to Security pages.

Video of Changes:
https://drive.google.com/file/d/1wX9e9K9H9wPTaLLQHh15-cWzMTMRr9DO/view?usp=sharing

Change-Id: I0fbf8e925e7fa357762d8eebd2bf13d561d49d86
Reviewed-on: https://go-review.googlesource.com/c/website/+/432775
Reviewed-by: Jamal Carvalho <jamal@golang.org>
Run-TryBot: Jamal Carvalho <jamal@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>

_content/article.tmpl

@@ -5,6 +5,9 @@
     <div class="Article-columns">
     <div class="Article-content">
     {{end}}
+    {{- if .breadcrumb}}
+      {{ breadcrumbs . }}
+    {{- end}}
     <h1>{{.title}}</h1>
     {{.Content}}
 

_content/css/styles.css

@@ -949,6 +949,13 @@ h1 + h2.subtitle {
   max-width: 75.75rem;
   padding: 0 0 1rem;
 }
+.SiteBreadcrumb {
+  list-style:none;
+  display:flex;
+  align-items:center;
+  padding:0;
+  margin: 1.5rem 0;
+}
 .BreadcrumbNav-li {
   align-items: center;
   display: flex;
@@ -988,11 +995,6 @@ a.BreadcrumbNav-link {
     width: 1rem;
   }
 }
-@media only screen and (min-width: 57.7rem) {
-  .BreadcrumbNav-inner {
-    margin-top: 0;
-  }
-}
 .SubHero-gridContainer,
 .WhoUses-gridContainer,
 .Playground-gridContainer,
@@ -2235,7 +2237,7 @@ a.WhoUsesCaseStudy-librariesViewMoreLink {
   padding-top: 1.125rem;
 }
 
-.Learn-heroContent a:not(.js-downloadBtn) {
+.Learn-heroContent a:not(.js-downloadBtn):not(.BreadcrumbNav-link) {
   text-decoration: underline;
 }
 

_content/doc/articles/wiki/index.html

@@ -1,6 +1,7 @@
 <!--{
 	"Title": "Writing Web Applications",
-	"Template": true
+	"Template": true,
+	"Breadcrumb": true
 }-->
 
 <h2>Introduction</h2>

_content/doc/cmd.html

@@ -1,5 +1,6 @@
 <!--{
-	"Title": "Command Documentation"
+	"Title": "Command Documentation",
+	"Breadcrumb": true
 }-->
 
 <p>

_content/doc/code.html

@@ -1,6 +1,7 @@
 <!--{
 	"Title": "How to Write Go Code",
-	"Template": true
+	"Template": true,
+	"Breadcrumb": true
 }-->
 
 <h2 id="Introduction">Introduction</h2>

_content/doc/contribute.html

@@ -1,6 +1,7 @@
 <!--{
 	"Title": "Contribution Guide",
-	"Template": true
+	"Template": true,
+	"Breadcrumb": true
 }-->
 
 <p>

_content/doc/database/index.md

@@ -1,5 +1,6 @@
 <!--{
-  "Title": "Accessing relational databases"
+  "Title": "Accessing relational databases",
+  "Breadcrumb": true
 }-->
 
 Using Go, you can incorporate a wide variety of databases and data access

_content/doc/database/open-handle.md

@@ -1,5 +1,6 @@
 <!--{
-  "Title": "Opening a database handle"
+  "Title": "Opening a database handle",
+  "Breadcrumb": true
 }-->
 
 The [`database/sql`](https://pkg.go.dev/database/sql) package simplifies

_content/doc/diagnostics.html

@@ -1,5 +1,6 @@
 <!--{
-	"Title": "Diagnostics"
+	"Title": "Diagnostics",
+  	"Breadcrumb": true
 }-->
 
 <!--

_content/doc/editors.html

@@ -1,5 +1,6 @@
 <!--{
-	"Title": "Editor plugins and IDEs"
+	"Title": "Editor plugins and IDEs",
+	"Breadcrumb": true
 }-->
 
 <h2 id="introduction">Introduction</h2>

_content/doc/effective_go.html

@@ -1,6 +1,7 @@
 <!--{
 	"Title": "Effective Go",
-	"Template": true
+	"Template": true,
+	"Breadcrumb": true
 }-->
 
 <h2 id="introduction">Introduction</h2>

_content/doc/faq.html

@@ -1,6 +1,7 @@
 <!--{
     "Title": "Frequently Asked Questions (FAQ)",
-    "Sidebar": "faq"
+    "Sidebar": "faq",
+    "Breadcrumb": true
 }-->
 
 <h2 id="Origins">Origins</h2>

_content/doc/gc-guide.html

@@ -1,6 +1,7 @@
 <!--{
 	"Title": "A Guide to the Go Garbage Collector",
-	"Path":  "/doc/gc-guide"
+	"Path":  "/doc/gc-guide",
+  	"Breadcrumb": true
 }-->
 
 <!--

_content/doc/gccgo_contribute.html

@@ -1,5 +1,6 @@
 <!--{
-	"Title": "Contributing to the gccgo frontend"
+	"Title": "Contributing to the gccgo frontend",
+	"Breadcrumb": true
 }-->
 
 <h2>Introduction</h2>

_content/doc/gdb.html

@@ -1,5 +1,6 @@
 <!--{
-	"Title": "Debugging Go Code with GDB"
+	"Title": "Debugging Go Code with GDB",
+	"Breadcrumb": true
 }-->
 
 <!--

_content/doc/go-get-install-deprecation.md

@@ -1,6 +1,7 @@
 <!--{
   "Title": "Deprecation of 'go get' for installing executables",
-  "Path": "/doc/go-get-install-deprecation"
+  "Path": "/doc/go-get-install-deprecation",
+  "Breadcrumb": true
 }-->
 
 ## Overview

_content/doc/go1compat.html

@@ -1,5 +1,6 @@
 <!--{
-	"Title": "Go 1 and the Future of Go Programs"
+	"Title": "Go 1 and the Future of Go Programs",
+	"Breadcrumb": true
 }-->
 
 <h2 id="introduction">Introduction</h2>

_content/doc/gopath_code.html

@@ -1,5 +1,6 @@
 <!--{
-	"Title": "How to Write Go Code (with GOPATH)"
+	"Title": "How to Write Go Code (with GOPATH)",
+	"Breadcrumb": true
 }-->
 
 <h2 id="Introduction">Introduction</h2>

_content/doc/install.html

@@ -1,7 +1,8 @@
 <!--{
 	"Title": "Download and install",
   "HideTOC": true,
-  "Sidebar": "bug"
+  "Sidebar": "bug",
+  "Breadcrumb": true
 }-->
 
 <p>

_content/doc/install/gccgo.html

@@ -1,5 +1,6 @@
 <!--{
-	"Title": "Setting up and using gccgo"
+	"Title": "Setting up and using gccgo",
+	"Breadcrumb": true
 }-->
 
 <p>

_content/doc/install/source.html

@@ -1,5 +1,6 @@
 <!--{
-	"Title": "Installing Go from source"
+	"Title": "Installing Go from source",
+	"Breadcrumb": true
 }-->
 
 <p>

_content/doc/tutorial/add-a-test.html

@@ -1,5 +1,6 @@
 <!--{
-    "Title": "Add a test"
+    "Title": "Add a test",
+    "Breadcrumb": true
 }-->
 
 <p>

_content/doc/tutorial/call-module-code.html

@@ -1,5 +1,6 @@
 <!--{
-    "Title": "Call your code from another module"
+    "Title": "Call your code from another module",
+    "Breadcrumb": true
 }-->
 
 <p>

_content/doc/tutorial/compile-install.html

@@ -1,5 +1,6 @@
 <!--{
-    "Title": "Compile and install the application"
+    "Title": "Compile and install the application",
+    "Breadcrumb": true
 }-->
 
 <p>

_content/doc/tutorial/create-module.html

@@ -1,5 +1,6 @@
 <!--{
-    "Title": "Tutorial: Create a Go module"
+    "Title": "Tutorial: Create a Go module",
+    "Breadcrumb": true
 }-->
 
 <p>

_content/doc/tutorial/database-access.md

@@ -1,5 +1,6 @@
 <!--{
-  "Title": "Tutorial: Accessing a relational database"
+  "Title": "Tutorial: Accessing a relational database",
+  "Breadcrumb": true
 }-->
 
 This tutorial introduces the basics of accessing a relational database with

_content/doc/tutorial/fuzz.md

@@ -1,6 +1,7 @@
 <!--{
   "Title": "Tutorial: Getting started with fuzzing",
-  "HideTOC": true
+  "HideTOC": true,
+  "Breadcrumb": true
 }-->
 
 This tutorial introduces the basics of fuzzing in Go. With fuzzing, random data

_content/doc/tutorial/generics.md

@@ -1,5 +1,6 @@
 <!--{
-  "Title": "Tutorial: Getting started with generics"
+  "Title": "Tutorial: Getting started with generics",
+  "Breadcrumb": true
 }-->
 
 This tutorial introduces the basics of generics in Go. With generics, you can

_content/doc/tutorial/getting-started.html

@@ -1,5 +1,6 @@
 <!--{
-    "Title": "Tutorial: Get started with Go"
+    "Title": "Tutorial: Get started with Go",
+    "Breadcrumb": true
 }-->
 
 <p>

_content/doc/tutorial/greetings-multiple-people.html

@@ -1,5 +1,6 @@
 <!--{
-    "Title": "Return greetings for multiple people"
+    "Title": "Return greetings for multiple people",
+    "Breadcrumb": true
 }-->
 
 <p>

_content/doc/tutorial/handle-errors.html

@@ -1,5 +1,6 @@
 <!--{
-    "Title": "Return and handle an error"
+    "Title": "Return and handle an error",
+    "Breadcrumb": true
 }-->
 
 <p>

_content/doc/tutorial/index.html

@@ -1,5 +1,6 @@
 <!--{
-    "Title": "Tutorials"
+    "Title": "Tutorials",
+    "Breadcrumb": true
 }-->
 
 <p>If you're new to a part of Go, take a look at the tutorials linked below.</p>

_content/doc/tutorial/module-conclusion.html

@@ -1,6 +1,7 @@
 <!--{
     "Title": "Conclusion",
-    "Path":  "/doc/tutorial/module-conclusion"
+    "Path":  "/doc/tutorial/module-conclusion",
+    "Breadcrumb": true
 }-->
 
 <p>

_content/doc/tutorial/random-greeting.html

@@ -1,5 +1,6 @@
 <!--{
-    "Title": "Return a random greeting"
+    "Title": "Return a random greeting",
+    "Breadcrumb": true
 }-->
 
 <p>

_content/doc/tutorial/web-service-gin.md

@@ -1,5 +1,6 @@
 <!--{
-  "Title": "Tutorial: Developing a RESTful API with Go and Gin"
+  "Title": "Tutorial: Developing a RESTful API with Go and Gin",
+  "Breadcrumb": true
 }-->
 
 This tutorial introduces the basics of writing a RESTful web service API with Go

_content/doc/tutorial/workspaces.md

@@ -1,5 +1,6 @@
 <!--{
-  "Title": "Tutorial: Getting started with multi-module workspaces"
+  "Title": "Tutorial: Getting started with multi-module workspaces",
+  "Breadcrumb": true
 }-->
 
 This tutorial introduces the basics of multi-module workspaces in Go.

_content/learn/index.md

@@ -1,5 +1,6 @@
 ---
 title: "Get Started"
+breadcrumbTitle: "Learn"
 ---
 
 <section class="Learn-hero">

_content/security/fuzz/index.md

@@ -1,10 +1,9 @@
 ---
 title: Go Fuzzing
 layout: article
+breadcrumb: true
 ---
 
-[Back to Go Security](/security)
-
 Go supports fuzzing in its standard toolchain beginning in Go 1.18. Native Go fuzz tests are
 [supported by OSS-Fuzz](https://google.github.io/oss-fuzz/getting-started/new-project-guide/go-lang/#native-go-fuzzing-support).
 

_content/security/fuzz/technical.md

@@ -1,5 +1,6 @@
 <!--{
-  "Title": "Go Fuzzing technical details"
+  "Title": "Go Fuzzing technical details",
+  "Breadcrumb": true
 }-->
 
 This document provides an overview of the technical details of the native fuzzing implementation, and is intended to be a resource for contributors.

_content/security/policy.md

@@ -1,10 +1,9 @@
 ---
 title: Go Security Policy
 layout: article
+breadcrumb: true
 ---
 
-[Back to Go Security](/security)
-
 ## Overview
 
 This document explains the Go Security team's process for handling issues

_content/site.tmpl

@@ -270,21 +270,19 @@
 {{- if ne .p1.URL "/"}}
   {{- breadcrumbnav (page (path.Dir (strings.TrimRight .p1.URL "/"))) .p2}}
 {{- end}}
-{{- if not (eq .p1.title "go.dev")}}
+{{- if not (eq .p1.title "The Go Programming Language")}}
 <li class="BreadcrumbNav-li {{if eq .p1.URL .p2.URL}}active{{end}}">
   <a class="BreadcrumbNav-link" href="{{.p1.URL}}">
-  {{or .p1.company .p1.title}}
+  {{or .p1.breadcrumbTitle .p1.title}}
   </a>
 </li>
 {{- end}}
 {{- end}}
 
 {{define "breadcrumbs"}}
-<div class="BreadcrumbNav">
-    <ol class="BreadcrumbNav-inner">
-      {{breadcrumbnav . .}}
-    </ol>
-</div>
+<ol class="SiteBreadcrumb">
+  {{breadcrumbnav . .}}
+</ol>
 {{- end}}
 
 {{define "gopher info" -}}
@@ -422,6 +420,11 @@
 <div class="Article-columns">
 <div class="Article-content">
 {{end}}
+
+{{if .breadcrumb}}
+  {{ breadcrumbs . }}
+{{end}}
+
 {{if .title}}
 <h1>{{.title}}</h1>
 {{else if eq .layout "error"}}

_content/solutions/index.md

@@ -8,6 +8,7 @@ layout: none
   <div class="GoCarousel" id="SolutionsHeroCarousel-carousel">
     <div class="GoCarousel-controlsContainer">
       <div class="GoCarousel-wrapper SolutionsHeroCarousel-wrapper">
+      {{ breadcrumbs . }}
         <ul class="js-solutionsHeroCarouselSlides SolutionsHeroCarousel-slides">
           {{- $n := 0}}
           {{- range newest $solutions}}