GitLab

* builtin function docstring

* init docstring

* view docstring

* add init to index and fix

* node /edge feature

* Example -> Examples

* fix func hyperlink

* traversal

* fix

* from/to_networkx docstring

* minor

* fix duplicate label

* comment about tensor framework

* from scipy sparse matrix

* fix format errors

* docstrings for graph mutation & queries

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

* subgraph docs

* updates

* Fix dataset

* Track data APIs

* Docstring for udf

* Track udf docs

* Improve

* Improved

* Delete udf.py

* Improve

* add examples in traversal.py

* message propagate methods

* use the new message propagation for tree-lstm

* update to the new name

* update propagate API doc

* update doc

* add propagate utest

* refactor API doc; add markup link in tutorials

* fix readme