add links in readme

Author: KiddoZhu

README.md

@@ -9,6 +9,12 @@ GraphVite - graph embedding at high speed and large scale
 [conda]: https://anaconda.org/milagraph/graphvite
 [license]: LICENSE
 
+[Docs] | [Tutorials] | [Benchmarks]
+
+[Docs]: https://graphvite.io/docs/latest/api/application
+[Tutorials]: https://graphvite.io/tutorials
+[Benchmarks]: https://graphvite.io/docs/latest/benchmark.html
+
 GraphVite is a general graph embedding engine, dedicated to high-speed and
 large-scale embedding learning in various applications.