[docs] [issue16827] Remove the relatively advanced content from section 2 in tutorial

[Senthil Kumaran]

Senthil Kumaran added the comment:

I addressed Berker Peksag's review comments on Jame's patch, tested the local building of docs, verified the content and looks.

Committed this in 2.7, 3.4 and 3.5.

Thank you all!

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assignee: docs at python -> orsenthil
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16827>
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