[issue22594] Add a link to the regex module in re documentation

[anupama srinivas murthy]

anupama srinivas murthy added the comment:

I have modified the patch and listed the points I know. Could you review it?

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versions:  -Python 3.4, Python 3.5
Added file: http://bugs.python.org/file37052/regex-link.patch

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<http://bugs.python.org/issue22594>
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