Add parent directory to path

Author: mgeier

doc/conf.py

@@ -20,6 +20,7 @@
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 sys.path.insert(0, os.path.abspath('.'))
+sys.path.insert(0, os.path.abspath('..'))
 
 # -- General configuration ------------------------------------------------