Add proper documentation page for SA0000Roslyn7446Workaround

Author: sharwell

StyleCopAnalyzers.sln

@@ -36,6 +36,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "documentation", "documentat
 		documentation\Configuration.md = documentation\Configuration.md
 		documentation\EnableConfiguration.md = documentation\EnableConfiguration.md
 		documentation\KnownChanges.md = documentation\KnownChanges.md
+		documentation\SA0000Roslyn7446Workaround.md = documentation\SA0000Roslyn7446Workaround.md
 		documentation\SA1000.md = documentation\SA1000.md
 		documentation\SA1001.md = documentation\SA1001.md
 		documentation\SA1002.md = documentation\SA1002.md

documentation/SA0000Roslyn7446Workaround.md

@@ -0,0 +1,44 @@
+## SA0000Roslyn7446Workaround
+
+<table>
+<tr>
+  <td>TypeName</td>
+  <td>SA0000Roslyn7446Workaround</td>
+</tr>
+<tr>
+  <td>CheckId</td>
+  <td>SA0000</td>
+</tr>
+<tr>
+  <td>Category</td>
+  <td>Special Rules</td>
+</tr>
+</table>
+
+## Cause
+
+Workaround incomplete diagnostics in Visual Studio 2015 Update 1.
+
+## Rule description
+
+Visual Studio 2015 Update 1 contains a bug which can cause diagnostics to occasionally not display in the Errors window.
+When this occurs, it is impossible to use the code fixes to address style violations reported during a build. This
+analyzer works around the bug [dotnet/roslyn#7446](https://github.com/dotnet/roslyn/issues/7446).
+
+When this analyzer is enabled, all diagnostics will eventually be reported in the Error window, but the performance of
+the analyzers is reduced. The rule is disabled for maximum performance, but can be enabled if users notice errors
+appearing during a build but not while editing, and they wish to use the code fixes to correct them.
+
+Note that some situations are not affected by the bug:
+
+* When building a project, all relevant warnings are reported even if this rule is disabled.
+* The various Fix All operations work properly for the selected scope, even if only a subset of the violations are
+  appearing in the Errors window.
+
+## How to fix violations
+
+This analyzer does not report any diagnostics.
+
+## How to suppress violations
+
+This analyzer does not report any diagnostics.