Fix CLA URLs

Author: ramnes

CONTRIBUTING.md

@@ -8,8 +8,8 @@ We'd love to accept your patches! Before we can take them, we have to jump a cou
 
 Please fill out either the individual or corporate Contributor License Agreement (CLA).
 
-  * If you are an individual writing original source code and you're sure you own the intellectual property, then you'll need to sign an [individual CLA](http://code.google.com/legal/individual-cla-v1.0.html).
-  * If you work for a company that wants to allow you to contribute your work, then you'll need to sign a [corporate CLA](http://code.google.com/legal/corporate-cla-v1.0.html).
+  * If you are an individual writing original source code and you're sure you own the intellectual property, then you'll need to sign an [individual CLA](https://identity.linuxfoundation.org/projects/cncf).
+  * If you work for a company that wants to allow you to contribute your work, then you'll need to sign a [corporate CLA](https://identity.linuxfoundation.org/node/285/organization-signup).
 
 Follow either of the two links above to access the appropriate CLA and instructions for how to sign and return it. Once we receive it, we'll be able to accept your pull requests.