Merge pull request realpython#410 from Zearin/markup-file-again

Mark up files (…that I missed earlier…)

Author: sigmavirus24

docs/_themes/README.rst

@@ -9,7 +9,7 @@ this guide:
 1. put this folder as _themes into your docs folder.  Alternatively
    you can also use git submodules to check out the contents there.
 
-2. add this to your conf.py: ::
+2. add this to your :file:`conf.py`: ::
 
 	sys.path.append(os.path.abspath('_themes'))
 	html_theme_path = ['_themes']

docs/dev/env.rst

@@ -280,7 +280,7 @@ virtualenv a pleasure to use by wrapping the command line API with a nicer CLI.
     $ pip install virtualenvwrapper
 
 
-Put this into your ``~/.bash_profile`` (Linux/Mac) file:
+Put this into your :file:`~/.bash_profile` (Linux/Mac) file:
 
 .. code-block:: console
 

docs/shipping/freezing.rst

@@ -57,7 +57,7 @@ Prerequisite is to install :ref:`Python on Windows <install-windows>`.
 
 1. Download and install http://sourceforge.net/projects/py2exe/files/py2exe/
 
-2. Write setup.py (`List of configuration options <http://www.py2exe.org/index.cgi/ListOfOptions>`_)::
+2. Write :file:`setup.py` (`List of configuration options <http://www.py2exe.org/index.cgi/ListOfOptions>`_)::
 
 .. code-block:: python