Merge pull request #48 from pmaji/dependabot/pip/notebook-6.1.5

Bump notebook from 6.0.0 to 6.1.5

Author: pmaji

requirements.txt

@@ -33,7 +33,7 @@ mistune==0.8.4
 mizani==0.5.4
 nbconvert==5.5.0
 nbformat==4.4.0
-notebook==6.0.0
+notebook==6.1.5
 numpy==1.16.4
 packaging==19.1
 palettable==3.2.0