Docs: Fix typos (#584)

Author: jwilk

README.rst

@@ -28,7 +28,7 @@ own sphinx projects. To read more and see a working demo_ head over to readthedo
 Installing
 ==========
 
-The theme is disributed on PyPI_ and can be installed with pip::
+The theme is distributed on PyPI_ and can be installed with pip::
 
    pip install sphinx_rtd_theme
 

docs/changelog.rst

@@ -86,7 +86,7 @@ v0.1.9
 * Intermittent scrollbar visibility bug fixed. This change introduces a
   backwards incompatible change to the theme's layout HTML. This should only be
   a problem for derivative themes that have overridden styling of nav elements
-  using direct decendant selectors. See `#215`_ for more information.
+  using direct descendant selectors. See `#215`_ for more information.
 * Safari overscroll bug fixed
 * Version added to the nav header
 * Revision id was added to the documentation footer if you are using RTD

docs/contributing.rst

@@ -12,8 +12,8 @@ of a front-end developer (vs. that of a python developer). That means installing
 
 .. seealso::
 
-   If you are unsure of approptiate actions to take while interacting with our
-   communinty please read our :doc:`Code of Conduct <rtd:/code-of-conduct>`.
+   If you are unsure of appropriate actions to take while interacting with our
+   community please read our :doc:`Code of Conduct <rtd:/code-of-conduct>`.
 
 
 Set up your environment