Fix broken link in CONTRIBUTING.md

Signed-off-by: Raunak Madan <143412156+CodexRaunak@users.noreply.github.com>

Author: CodexRaunak

CONTRIBUTING.md

@@ -1,7 +1,7 @@
 # <a name="contributing">Contributing Overview</a>
 Please do! Thanks for your help improving the project! :balloon:
 
-All contributors are welcome. Please see the [newcomers welcome guide](https://docs.google.com/document/d/17OPtDE_rdnPQxmk2Kauhm3GwXF1R5dZ3Cj8qZLKdo5E/edit) for how, where and why to contribute. This project is community-built and welcomes collaboration. Contributors are expected to adhere to our [Code of Conduct](.CODE_OF_CONDUCT.md).
+All contributors are welcome. Please see the [newcomers welcome guide](https://layer5.io/community/newcomers) for how, where and why to contribute. This project is community-built and welcomes collaboration. Contributors are expected to adhere to our [Code of Conduct](.CODE_OF_CONDUCT.md).
 
 Not sure where to start? First, see the [newcomers welcome guide](https://docs.google.com/document/d/17OPtDE_rdnPQxmk2Kauhm3GwXF1R5dZ3Cj8qZLKdo5E/edit). Grab an open issue with the [help-wanted label](../../labels/help%20wanted) and jump in. Join the [Slack account](http://slack.layer5.io) and engage in conversation. Create a [new issue](/../../issues/new/choose) if needed.  All [pull requests](/../../pulls) should reference an open [issue](/../../issues). Include keywords in your pull request descriptions, as well as commit messages, to [automatically close issues in GitHub](https://help.github.com/en/github/managing-your-work-on-github/closing-issues-using-keywords).
 
@@ -102,3 +102,4 @@ Resources: https://lab.github.com and https://try.github.com/
 ### License
 
 This repository and site are available as open source under the terms of the [Apache 2.0 License](https://opensource.org/licenses/Apache-2.0).
+