DGL document and tutorial folder

Requirements

You need to build DGL locally first (as described here), and ensure the following python packages are installed:

• sphinx==4.2.0
• sphinx-gallery
• sphinx_rtd_theme
• sphinx_copybutton
• nbsphinx>=0.8.11
• nbsphinx-link>=1.3.0
• pillow
• matplotlib
• nltk
• seaborn
• ogb
• rdflib

Build documents

First, clean up existing files:

./clean.sh

To build for PyTorch backend only,

make pytorch

To build for MXNet backend only,

make mxnet

To build for both backends,

make html

Render locally

cd build/html
python3 -m http.server 8000

Add new folders

Add the path of the new folder in the two lists examples_dirs and gallery_dirs in docs/source/conf.py.