message: Adding mailing list
diff: @@ -12,3 +12,4 @@ Internally Cylon uses [Apache Arrow](https://arrow.apache.org/) to represent the
  The documentation can be found at [https://cylondata.org](https://cylondata.org)
  Email - [cylondata@googlegroups.com](mailto:cylondata@googlegroups.com)
  +Mailing List - [Join](https://groups.google.com/forum/#!forum/cylondata/join)
  