📦 Adding Roslyn xref (#3523)

* 📦 Adding Roslyn xref

* 📦 Updating API page

* 📦 Landing page

api/index.md

@@ -4,7 +4,8 @@ hide_bc: true
 title: .NET API Browser
 quickFilterColumn1: netframework-4.7.1,netcore-2.0,netstandard-2.0
 quickFilterColumn2: xamarinios-10.8,xamarinandroid-7.1,xamarinmac-3.0
-quickFilterColumn3: azuremgmtresourcemanager-1.5.0-preview,appinsights-2.3.0-beta3,aspnetcore-2.0
+quickFilterColumn3: azure-dotnet,aspnetcore-2.0
+ms.topic: landing-page
 ---
 
 # .NET API Browser

docfx.json

@@ -168,7 +168,8 @@
       "_zip/vs.140.zip",
       "_zip/office15.zip",
       "_zip/missingapi.yml",
-      "_zip/msdnsmallset.yml"
+      "_zip/msdnsmallset.yml",
+      "_zip/roslyn.yml"
     ],
     "lruSize": 0
   }