Update CONTRIBUTING.md
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b26896e..c32a97e 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -21,7 +21,7 @@
 Anyone can contribute to the OpenWhisk project and we welcome your contributions.
 
 There are multiple ways to contribute: report bugs, improve the docs, and
-contribute code, but request you follow these prerequisites and guidelines:
+contribute code, but you must follow these prerequisites and guidelines:
 
  - [Contributor License Agreement](#contributor-license-agreement)
  - [Raising issues](#raising-issues)
@@ -34,24 +34,29 @@
 Instructions on how to do this can be found here:
 [http://www.apache.org/licenses/#clas](http://www.apache.org/licenses/#clas)
 
-Once, submitted you will receive a confirmation email from the Apache Software Foundation (ASF) and 
-can proceed to create your Apache account. This account will be used to verify pull requests (PRs) 
-come from contributors that have signed a CLA.
+Once submitted, you will receive a confirmation email from the Apache Software Foundation (ASF) and be added to
+the following list: http://people.apache.org/unlistedclas.html. 
+
+Project committers will use this list to verify pull requests (PRs) come from contributors that have signed a CLA.
 
 We look forward to your contributions! 
 
 ## Raising issues
 
-Please raise any bug reports on the issue tracker. Be sure to search the list to see if your issue has already been raised.
+Please raise any bug reports on the respective project repository's GitHub issue tracker. Be sure to search the 
+list to see if your issue has already been raised.
 
-A good bug report is one that make it easy for us to understand what you were
-trying to do and what went wrong. Provide as much context as possible so we can try to recreate the issue.
+A good bug report is one that make it easy for us to understand what you were trying to do and what went wrong. 
+Provide as much context as possible so we can try to recreate the issue.
 
 ### Discussion
 
 Please use the project's developer email list to engage our community:
 [dev@openwhisk.incubator.apache.org](dev@openwhisk.incubator.apache.org)
 
+In addition, we provide a "dev" Slack team channel for conversations at:
+https://openwhisk-team.slack.com/messages/dev/
+
 ### Coding standards
 
 Please ensure you follow the coding standards used throughout the existing