Add API Docs

Author: koustuvsinha

README.md

@@ -5,7 +5,7 @@
 # GraphLog
 API to interface with the GraphLog Dataset. GraphLog is a multi-purpose, multi-relational graph dataset built using rules grounded in first-order logic.
 
-[Homepage](https://www.cs.mcgill.ca/~ksinha4/graphlog/) | [Paper](https://arxiv.org/abs/2003.06560)
+[Homepage](https://www.cs.mcgill.ca/~ksinha4/graphlog/) | [Paper](https://arxiv.org/abs/2003.06560) | [API Docs](https://graphlog.readthedocs.io/en/latest/)
 
 <img src="docs/images/graphlog_rule.png" width="400">