Fix the broken link in contributing.md (dotnet/coreclr#10828)

The List.cs link is broken in contributing.md. This PR updates the link to List.cs accordingly.

Fix dotnet/coreclr#10822

Commit migrated from https://github.com/dotnet/coreclr/commit/a2a631bdc30948dc528c130c4c3e142400d5125a

diff --git a/docs/coreclr/project-docs/contributing.md b/docs/coreclr/project-docs/contributing.md
index f099bf9..3bedc82 100644 (file)
--- a/docs/coreclr/project-docs/contributing.md
+++ b/docs/coreclr/project-docs/contributing.md
@@ -129,7 +129,7 @@ The following file header is the used for .NET Core. Please use it for new files
 ```
 
 - See [class.cpp](../../src/vm/class.cpp) for an example of the header in a C++ file.
-- See [List.cs](https://github.com/dotnet/corefx/blob/master/src/System.Collections/src/System/Collections/Generic/List.cs) for an example of the header in a C# file.
+- See [List.cs](../../src/mscorlib/src/System/Collections/Generic/List.cs) for an example of the header in a C# file.
 
 Copying Files from Other Projects
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