GitLab

* docstrings for graph mutation & queries

* [Doc] contrib.sampler. (#200)

* subgraph docs

* updates

* added installation guide

* style fix

* package name fixes

* adding it back...

* fix as requested

* adding link

* mac os build instructions

* OS -> macOS

* conda recipe

* switching to source build

* trying windows build

* wip

* windows build works

* setup sphinx-gallery; work on graph tutorial

* draft dglgraph tutorial

* update readme to include document url

* rm obsolete file

* Draft the message passing tutorial