add path so docs compile
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 422128e..6ce7f02 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -16,7 +16,7 @@
# If extensions (or modules to document with autodoc) are in another directory,
# 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 -----------------------------------------------------