Typos
Merge pull request #14 from Astalaseven/patch-3

Typos
[enh] add requirements-docs.txt
[fix] shouldn't install those for docs
[mod] pep8
[doc] show that Baron keeps the formatting
[doc] document position_to_path and position_to_node
[doc] document path_to_node
[doc] typo
[doc] Typos
Merge pull request #15 from Astalaseven/patch-4

[doc] Typos
[fix] Import error on python_version variable

`ImportError: cannot import name python_version` because of if?
Import now functional.
Merge pull request #16 from Astalaseven/patch-5

[fix] Import error on python_version variable
[doc] typo
[doc] enhance the explanation to locate a node
[doc] Typos
Merge pull request #17 from Astalaseven/patch-8

[doc] Typos
[doc] be more exact
[doc] clarify opposition to AST
[doc] enhance presentation of parse and dumps