Add CLA assist to the contribution workflow in README

diff --git a/README.md b/README.md
index 25536a4efda1ef5c352b2c38ba029925907d1bd7..060c0afdf063f369e0d8c5507dc07037f4d25dcf 100644 (file)
--- a/README.md
+++ b/README.md
@@ -96,7 +96,7 @@ We welcome your contributions. To make the process as seamless as possible, we a
 
 * Go ahead and fork the project and make your changes. We encourage pull requests to discuss code changes.
 * When you’re ready to create a pull request, be sure to:
-     * Sign the [Forum Release thread](http://discuss.gohugo.io/t/switching-to-apache-2-license/173/26)
+     * Sign the [CLA](https://cla-assistant.io/spf13/hugo)
      * Have test cases for the new code. If you have questions about how to do it, please ask in your pull request.
      * Run `go fmt`
      * Squash your commits into a single commit. `git rebase -i`. It’s okay to force update your pull request.