Consistently use 'console' highlighting where applicable

Author: xolox

README.rst

@@ -32,7 +32,7 @@ Installation
 The `coloredlogs` package is available on PyPI_ which means installation should
 be as simple as:
 
-.. code-block:: sh
+.. code-block:: console
 
  $ pip install coloredlogs
 

coloredlogs/__init__.py

@@ -90,7 +90,7 @@
 The simplest customization is to change the log format, for example:
 
 .. literalinclude:: examples/custom-log-format.txt
- :language: sh
+ :language: console
 
 Here's what that looks like in a terminal (I always work in terminals with a
 black background and white text):
@@ -105,7 +105,7 @@
 part and leave only the time:
 
 .. literalinclude:: examples/custom-datetime-format.txt
- :language: sh
+ :language: console
 
 Here's what it looks like in a terminal:
 
@@ -118,7 +118,7 @@
 Finally you can customize the colors and text styles that are used:
 
 .. literalinclude:: examples/custom-colors.txt
- :language: sh
+ :language: console
 
 Here's an explanation of the features used here: