Update Microsoft.Build.StandardCI.props

Author: tmat

src/Microsoft.Build.StandardCI/build/Microsoft.Build.StandardCI.props

@@ -2,7 +2,7 @@
 <Project>
   <!--
     Default values for properties initialized from Standard CI environment variables.
-    See https://github.com/dotnet/designs/blob/master/accepted/build/standard-ci-env-variables.md.
+    See https://github.com/dotnet/sourcelink/tree/master/docs/StandardCI.
 
     Build servers that comply with Standard CI specification set STANDARD_CI_* variables.
     
@@ -38,4 +38,4 @@
     -->
     <RepositoryType Condition="'$(RepositoryType)' == ''">$(STANDARD_CI_REPOSITORY_TYPE)</RepositoryType>
   </PropertyGroup>
-</Project>
+</Project>