Update to use vars

Author: Pete Bishop

Writerside/topics/Contributing.md

@@ -27,7 +27,7 @@ Before contributing, read our Code of Conduct to learn more about our community
 
 Refer to the following channels to connect with fellow contributors or to stay up-to-date with news about the NativeCLI project:
 
-* Join our project contributors on [GitHub Discussions](https://github.com/PeteBishwhip/nativephp-cli/discussions).
+* Join our project contributors on [GitHub Discussions](%code_repo%/discussions).
 * Stay updated on the latest news and changes to the project by signing up to receive our newsletter.
 
 ## Share ideas

Writerside/topics/Sponsoring.md

@@ -29,7 +29,7 @@ We offer several sponsorship tiers to accommodate different levels of support. E
 
 ## How to Sponsor
 
-Sponsoring NativeCLI is easy. Simply visit our [GitHub Sponsors page](https://github.com/sponsors/PeteBishwhip) and choose a sponsorship tier that suits you. Your support is greatly appreciated and will go a long way in helping us maintain and improve the project.
+Sponsoring NativeCLI is easy. Simply visit our [GitHub Sponsors page](%sponsor_url%) and choose a sponsorship tier that suits you. Your support is greatly appreciated and will go a long way in helping us maintain and improve the project.
 
 ## Our Sponsors