Update CONTRIBUTING.md

Author: danmoseley

CONTRIBUTING.md

@@ -1,9 +1,10 @@
-# First things first: Welcome!
+# Welcome!
 
-If you are here, it means you are interested in helping us out. A hearty welcome and thank you! We always welcome new contribution to any of the following areas:
-* Bug reports regarding the software or the documentation.
-* Documentation updates, tutorial and examples.
-* New code to implement a feature or patch an issue.
+If you are here, it means you are interested in helping us out. A hearty welcome and thank you! There are many ways you can contribute to the ML.NET project:
+
+* Offer PR's to fix bugs or implement new features.
+* Give us feedback and bug reports regarding the software or the documentation.
+* Improve our examples, tutorials, and documentation.
 
 ## Getting started:
 
@@ -13,7 +14,7 @@ Please join the community on [gitter](https://gitter.im/dotnet). Also please mak
 
 If you are new to GitHub [here](https://help.github.com/categories/collaborating-with-issues-and-pull-requests/) is a detailed help source on getting involved with development on GitHub.
 
-As a first time contributor, you will be invited to sign the Contributor License Agreement (CLA). Please follow the instructions of the dotnet foundation bot reviewer on your PR to sign the agreement. Please note that only original code with signed CLA could be merged into the main repo.
+As a first time contributor, you will be invited to sign the Contributor License Agreement (CLA). Please follow the instructions of the dotnet foundation bot reviewer on your PR to sign the agreement indicating that you have appropriate rights to your contribution.
 
 Your pull request needs to reference a filed issue. Please fill in the template that is populated for the pull request. Only pull requests adressing small typos can have no issues associated with them.