Update Contributing to the Code.rst

Documentation/source/Readme/Contributing to the Code.rst

@@ -16,7 +16,7 @@ Develop, review, and test code following the OpenHarmony coding standards. Make
 Contribution Workflow
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-For details, see Contribution Process.
+For details, see `Contribution Process <https://git.ostc-eu.org/docs/developer-guide/-/blob/master/Documentation/source/Readme/Contribution%20Process.rst/>`_.
 
 Security Issue Disclosure
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