[docs] [issue27174] Update URL to IPython in interactive.rst

[Serhiy Storchaka]

Changes by Serhiy Storchaka <storchaka+cpython at gmail.com>:


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assignee:  -> docs at python
components: +Documentation -Devguide
keywords: +easy
nosy: +docs at python
stage:  -> needs patch
type: enhancement -> behavior
versions: +Python 2.7, Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27174>
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