Freeze nbconvert to version 5.6.1

cc835af7 · Matthieu Boileau · 3251ae47 · cc835af7
Commit cc835af7 authored Oct 20, 2020 by Matthieu Boileau
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,6 +10,7 @@ readme = "README.md"

 [tool.poetry.dependencies]
 python = "^3.7"
+nbconvert = "^5.6.1"
 bookbook = "^0.2"
 bs4 = "^0.0.1"
 IPython = "^7.15.0"