Add link to contribution guidelines

README.md

diff --git a/README.md b/README.md
index 97a37f6..a7cb027 100644
--- a/README.md
+++ b/README.md
@@ -116,3 +116,5 @@
 Unless you explicitly state otherwise, any contribution intentionally submitted
 for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
 dual licensed as above, without any additional terms or conditions.
+
+The contribution guidelines can be found here: [contribution guidelines](CONTRIBUTING.md)