[ci-skip] Documentation updates

CONTRIBUTING.md

@@ -24,7 +24,7 @@ consistent to those found in the repository.
 They are as follows (more will be added as they come up):
 
 - No spaces between parentheses. e.g. `f(g())` not `f ( g ( ) )`.
-- No tabs allowed. Use 4 space indentation.
+- Tabs for indentation, spaces for alignment.
 - Bracing style is
 
 ```cpp

README.md

@@ -1,4 +1,4 @@
-## Sol 2.5
+## Sol 2.8
 
 [![Build Status](https://travis-ci.org/ThePhD/sol2.svg?branch=develop)](https://travis-ci.org/ThePhD/sol2)
 [![Documentation Status](https://readthedocs.org/projects/sol2/badge/?version=latest)](http://sol2.readthedocs.org/en/latest/?badge=latest)

docs/source/conf.py

@@ -59,9 +59,9 @@ author = 'ThePhD'
 # built documents.
 #
 # The short X.Y version.
-version = '2.5'
+version = '2.8'
 # The full version, including alpha/beta/rc tags.
-release = '2.5.2'
+release = '2.8.5'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

docs/source/index.rst

@@ -7,7 +7,7 @@
 	:target: https://github.com/ThePhD/sol2
 	:alt: sol2 repository
 
-Sol 2.5
+Sol 2.8
 =======
 a fast, simple C++ and Lua Binding
 ----------------------------------