Exculde jupyter notebook from rtd checks

Author: ClaraBuettner

doc/conf.py

@@ -132,7 +132,7 @@
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
-exclude_patterns = ['_build', 'whatsnew']
+exclude_patterns = ['_build', 'whatsnew', 'eTraGo_tutorial_release0.9.ipynb']
 
 # The reST default role (used for this markup: `text`) to use for all
 # documents.