Readme cleanup (#554)

* Move badges below title

* typekit_id is a string

* Fix some text uninententionally bold

* More accurately describe install

* Proper italics instead of non-working underline

* MD style inline code to rst style

* hidden is a :property:

README.rst

@@ -8,6 +8,10 @@
 .. _demo: https://sphinx-rtd-theme.readthedocs.io/en/latest/
 .. _hidden: http://sphinx-doc.org/markup/toctree.html
 
+**************************
+Read the Docs Sphinx Theme
+**************************
+
 .. image:: https://img.shields.io/pypi/v/sphinx_rtd_theme.svg
    :target: https://pypi.python.org/pypi/sphinx_rtd_theme
 .. image:: https://travis-ci.org/rtfd/sphinx_rtd_theme.svg?branch=master
@@ -19,11 +23,7 @@
   :target: http://sphinx-rtd-theme.readthedocs.io/en/latest/?badge=latest
   :alt: Documentation Status
 
-**************************
-Read the Docs Sphinx Theme
-**************************
-
-.. contents:: 
+.. contents::
    :backlinks: none
 
 View a working demo_ over on readthedocs.org_.
@@ -40,7 +40,7 @@ Installation
 Via package
 -----------
 
-Download the package or add it to your ``requirements.txt`` file:
+Install the package (or add it to your ``requirements.txt`` file):
 
 .. code:: bash
 
@@ -107,26 +107,26 @@ The following options are available:
 Base options
 ~~~~~~~~~~~~
 
-* ``typekit_id`` This will let users specify a typekit id to use for displaying nicer fonts.
+* ``typekit_id`` String. This will let users specify a typekit id to use for displaying nicer fonts.
 * ``canonical_url`` String. This will specify a `canonical url <https://en.wikipedia.org/wiki/Canonical_link_element>`__
   to let search engines know they should give higher ranking to latest version of the docs.
   The url points to the root of the documentation and requires a trailing slash.
 * ``analytics_id`` String. Change the Google Analytics ID that is included on pages.
 * ``display_version`` Bool. With this disabled, the version number isn't shown at the top of the sidebar.
 * ``prev_next_buttons_location`` String. can take the value ``bottom``, ``top``, ``both`` , or ``None``
-   and will display the "Next" and "Previous" buttons accordingly.
+  and will display the "Next" and "Previous" buttons accordingly.
 * ``style_external_links`` Bool. Add an icon next to external links. Defaults to ``False``.
 
 TOC Options
 ~~~~~~~~~~~
 
 These effect how we display the Table of Contents in the side bar. You can read more about them here: http://www.sphinx-doc.org/en/stable/templating.html#toctree
 
-* ``collapse_navigation`` Bool. With this enabled, you will lose the `[+]` drop downs next to each section in the sidebar.
-   This is useful for _very large_ documents.
+* ``collapse_navigation`` Bool. With this enabled, you will lose the ``[+]`` drop downs next to each section in the sidebar.
+  This is useful for *very large* documents.
 * ``sticky_navigation`` Bool. This causes the sidebar to scroll with the main page content as you scroll the page.
 * ``navigation_depth`` Int. Indicate the max depth of the tree; by default, all levels are included.
-* ``includehidden`` Bool. Specifies if the sidebar includes toctrees marked with the `:hidden:` option
+* ``includehidden`` Bool. Specifies if the sidebar includes toctrees marked with the ``:hidden:`` option
 * ``titles_only`` Bool. If True, removes headers within a page from the sidebar.
 
 Page-level configuration
@@ -239,7 +239,7 @@ your documents, the toctree will misbuild, and the resulting menu might not show
 depth when it renders.
 
 Also note that by default the table of contents is set with ``includehidden=True``. This allows you
-to set a hidden toc in your index file with the hidden_ property that will allow you
+to set a hidden toc in your index file with the `:hidden: <hidden_>`_ property that will allow you
 to build a toc without it rendering in your index.
 
 By default, the navigation will "stick" to the screen as you scroll. However if your toc
@@ -263,7 +263,7 @@ Set up your environment
 #. Install sphinx_ into a virtual environment.
 
    .. code:: bash
-   
+
        pip install sphinx sphinxcontrib-httpdomain
 
 #. Install sass.