diff --git a/requests/packages/README.rst b/requests/packages/README.rst
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+If you are planning to submit a pull request to requests with any changes in 
+this library do not go any further. These are independent libraries which we 
+vendor into requests. Any changes necessary to these libraries must be made in 
+them and submitted as separate pull requests to those libraries.
+
+urllib3 pull requests go here: https://github.com/shazow/urllib3
+
+charade pull requests go here: https://github.com/sigmavirus24/charade