added Contributing topic

README.md

@@ -8,3 +8,9 @@ This page in intended to serve as a hub of information and support for the Libre
 This page is community-driven; the wiki contributors are not the official or final decision-makers of any production aspect of these products and are providing this information as a convenience to you.
 
 Please visit the [Libre Computer Project User Group Wiki](http://lcpugwiki.readthedocs.io/en/latest/)
+
+## Contributing
+Are we missing a how-to that you have found useful? Please [submit an issue](https://github.com/LibreComputerProjectUserGroup/wiki/issues) or [a pull request] (https://github.com/LibreComputerProjectUserGroup/wiki/pulls) and let's get it implemented!
+
+### Read on how-to contribute
+[Contributing document](https://github.com/LibreComputerProjectUserGroup/wiki/blob/master/CONTRIBUTING.md)