Added logo.

Author: jonathanslenders

README.rst

@@ -3,6 +3,8 @@ Python Prompt Toolkit
 
 |Build Status|  |AppVeyor|  |PyPI|  |RTD|  |License|
 
+.. image :: https://github.com/prompt-toolkit/python-prompt-toolkit/raw/master/docs/images/logo_400px.png
+
 ``prompt_toolkit`` is a library for building powerful interactive command lines
 and terminal applications in Python.
 

docs/conf.py

@@ -129,7 +129,7 @@
 
 # The name of an image file (relative to this directory) to place at the top
 # of the sidebar.
-#html_logo = None
+html_logo = 'images/logo_400px.png'
 
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32