Add extra docs requirements to optional

Author: jonmmease

packages/python/plotly/test_requirements/requirements_36_optional.txt

@@ -20,3 +20,22 @@ matplotlib==2.2.3
 scikit-image==0.14.4
 psutil==5.7.0
 kaleido
+
+jupytext==1.1.1
+patsy==0.5.1
+python-igraph
+networkx
+squarify
+scikit-learn
+sphinx
+sphinx_bootstrap_theme
+recommonmark
+pathlib
+python-frontmatter
+datashader
+pyarrow
+cufflinks==0.17.3
+umap-learn==0.5.1
+pooch
+wget
+nbconvert==5.6.1

packages/python/plotly/test_requirements/requirements_37_optional.txt

@@ -20,3 +20,22 @@ matplotlib==2.2.3
 scikit-image==0.14.4
 psutil==5.7.0
 kaleido
+
+jupytext==1.1.1
+patsy==0.5.1
+python-igraph
+networkx
+squarify
+scikit-learn
+sphinx
+sphinx_bootstrap_theme
+recommonmark
+pathlib
+python-frontmatter
+datashader
+pyarrow
+cufflinks==0.17.3
+umap-learn==0.5.1
+pooch
+wget
+nbconvert==5.6.1

packages/python/plotly/test_requirements/requirements_38_optional.txt

@@ -20,3 +20,22 @@ matplotlib==2.2.3
 scikit-image==0.18.1
 psutil==5.7.0
 kaleido
+
+jupytext==1.1.1
+patsy==0.5.1
+python-igraph
+networkx
+squarify
+scikit-learn
+sphinx
+sphinx_bootstrap_theme
+recommonmark
+pathlib
+python-frontmatter
+datashader
+pyarrow
+cufflinks==0.17.3
+umap-learn==0.5.1
+pooch
+wget
+nbconvert==5.6.1

packages/python/plotly/test_requirements/requirements_39_optional.txt

@@ -20,3 +20,22 @@ matplotlib==2.2.3
 scikit-image==0.18.1
 psutil==5.7.0
 kaleido
+
+jupytext==1.1.1
+patsy==0.5.1
+python-igraph
+networkx
+squarify
+scikit-learn
+sphinx
+sphinx_bootstrap_theme
+recommonmark
+pathlib
+python-frontmatter
+datashader
+pyarrow
+cufflinks==0.17.3
+umap-learn==0.5.1
+pooch
+wget
+nbconvert==5.6.1