go.dev/_content/security: fix subheading text to make sense

Change-Id: I18659da9850d7f4ea575767b359007fc70f05902
Reviewed-on: https://go-review.googlesource.com/c/website/+/361421
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Julie Qiu <julie@golang.org>
Website-Publish: Russ Cox <rsc@golang.org>

go.dev/_content/security/index.md

@@ -9,7 +9,7 @@ title: "Security"
         {{breadcrumbs .}}
         <h1>Build secure applications with Go</h1>
         <p>
-          Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
+          Gopherum quis custodiet?
         </p>
       </div>
       <div class="Security-heroGopher">
@@ -99,7 +99,7 @@ title: "Security"
   <div class="Card-inner">
     {{- if .icon}}
     <div class="Card-icon">
-      <img src="{{.icon}}"/> 
+      <img src="{{.icon}}"/>
     </div>
     {{- end}}
     <div class="Card-content">