MetadataLoadContext: add link to related article (#4137)

Author: MSDN-WhiteKnight

xml/System.Reflection/MetadataLoadContext.xml

@@ -30,6 +30,8 @@ A `MetadataLoadContext` serves as a dictionary that binds assembly names to <xre
 
 Assemblies are treated strictly as metadata. There are no restrictions on loading assemblies based on target platform, CPU architecture, or pointer size. There are no restrictions on the assembly designated as the core assembly (**mscorlib**).
 
+For more information and examples, see [How to: Inspect assembly contents using MetadataLoadContext](~/docs/standard/assembly/inspect-contents-using-metadataloadcontext.md).
+
 ]]></format>
     </remarks>
   </Docs>