Merge pull request #763 from oliver-sanders/example-readme-files

prevent example README files getting built

src/conf.py

@@ -144,7 +144,7 @@
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
-# exclude_patterns = ['_build']
+exclude_patterns = ['user-guide/examples/**README.rst']
 
 # The name of the Pygments (syntax highlighting) style to use.
 pygments_style = 'autumn'