[issue16687] Fix small gramatical error and add reference link in hashlib documentation

[Jeff Knupp]

New submission from Jeff Knupp:

Original text is: 

> Feeding string objects is to update is not supported

Should be "... objects in to update" instead of "is to"

Also, mark "GIL" as a :term: to provide a link to its definition, as it's used without much context in the following note:

> .. note::
>
>   For better multithreading performance, the Python :term:`GIL` is 
>   released for strings of more than 2047 bytes at object creation or
>   on update.

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assignee: docs at python
components: Documentation
files: patch.txt
messages: 177507
nosy: Jeff.Knupp, docs at python
priority: normal
severity: normal
status: open
title: Fix small gramatical error and add reference link in hashlib documentation
versions: Python 3.5
Added file: http://bugs.python.org/file28318/patch.txt

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16687>
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