Add README to requests/packages

- Hopefully people will read this before making changes to vendored libraries

diff --git a/requests/packages/README.rst b/requests/packages/README.rst
new file mode 100644 (file)
index 0000000..3948adb
--- /dev/null
+++ b/requests/packages/README.rst
@@ -0,0 +1,8 @@
+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