Merge pull request #5 from P2GX/add-doc-link

Add link to docs at `docs.rs`

Author: ielis

README.md

@@ -1,3 +1,5 @@
 # Oboannotation
 
-Access annotations of biomedical ontologies.
+A Rust crate for accessing annotations of biomedical ontologies.
+
+See the crate's documentation and examples at [docs.rs](https://docs.rs/oboannotation).