Merge pull request #55 from hyunjoonbok/dependabot/pip/nbconvert-6.5.1

Bump nbconvert from 5.6.1 to 6.5.1

Author: hyunjoonbok

requirements.txt

@@ -127,7 +127,7 @@ msgpack==0.6.2
 multidict==4.7.5
 munch==2.5.0
 murmurhash==1.0.2
-nbconvert==5.6.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==2.2
 notebook==6.1.5