Added more manifest fields

Author: octavonce

Cargo.toml

@@ -5,7 +5,10 @@ authors = ["Octavian Oncescu <[email protected]>"]
 edition = "2018"
 repository = "https://github.com/purpleprotocol/graphlib"
 keywords = ["graph", "data-structure", "mutable", "graph-algorithm"]
+catergories = ["data-structure"]
 description = "Graphlib is a simple and powerful rust library for the graph data-structure that is optimized for high churn environments (where the graph mutates often). It provides a simple api for manipulating and for interacting with graphs."
+license = "MIT"
+readme = "README.md"
 
 [badges]
 travis-ci = { repository = "purpleprotocol/graphlib", branch = "master" }