formatting updates

CONTRIBUTING.md

@@ -3,7 +3,7 @@
 This project welcomes contributions and suggestions. Most contributions require you to
 agree to a Contributor License Agreement (CLA) declaring that you have the right to,
 and actually do, grant us the rights to use your contribution. For details, visit
-https://cla.microsoft.com.
+<https://cla.microsoft.com>.
 
 When you submit a pull request, a CLA-bot will automatically determine whether you need
 to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the
@@ -11,4 +11,4 @@ instructions provided by the bot. You will only need to do this once across all
 
 This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
 For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/)
-or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
+or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.