Fix #295

At least, I *think* this should fix this. It does locally, but we'll
have to see what happens when I push it to RTD!

README.rst

@@ -2,17 +2,19 @@
 gpiozero
 ========
 
-.. image:: https://badge.fury.io/py/gpiozero.svg
-    :target: https://badge.fury.io/py/gpiozero
-    :alt: Latest Version
+.. ifconfig:: html_theme == 'sphinx_rtd_theme'
 
-.. image:: https://travis-ci.org/RPi-Distro/python-gpiozero.svg?branch=master
-    :target: https://travis-ci.org/RPi-Distro/python-gpiozero
-    :alt: Build Tests
+    .. image:: https://badge.fury.io/py/gpiozero.svg
+        :target: https://badge.fury.io/py/gpiozero
+        :alt: Latest Version
 
-.. image:: https://img.shields.io/codecov/c/github/RPi-Distro/python-gpiozero/master.svg?maxAge=2592000
-    :target: https://codecov.io/github/RPi-Distro/python-gpiozero
-    :alt: Code Coverage
+    .. image:: https://travis-ci.org/RPi-Distro/python-gpiozero.svg?branch=master
+        :target: https://travis-ci.org/RPi-Distro/python-gpiozero
+        :alt: Build Tests
+
+    .. image:: https://img.shields.io/codecov/c/github/RPi-Distro/python-gpiozero/master.svg?maxAge=2592000
+        :target: https://codecov.io/github/RPi-Distro/python-gpiozero
+        :alt: Code Coverage
 
 A simple interface to everyday GPIO components used with Raspberry Pi.
 

docs/conf.py

@@ -46,7 +46,12 @@ sys.modules['spidev'] = Mock()
 
 # -- General configuration ------------------------------------------------
 
-extensions = ['sphinx.ext.autodoc', 'sphinx.ext.viewcode', 'sphinx.ext.intersphinx']
+extensions = [
+    'sphinx.ext.autodoc',     # support for automethod, autoclass, etc.
+    'sphinx.ext.viewcode',    # support for "Source" links in output
+    'sphinx.ext.intersphinx', # support links to Python library docs etc.
+    'sphinx.ext.ifconfig',    # support for ifconfig conditional includes
+    ]
 templates_path = ['_templates']
 source_suffix = '.rst'
 #source_encoding = 'utf-8-sig'