Fix broken links in Update how-to-contribute.mdx (#742)

content/guides/contribute/how-to-contribute.mdx

@@ -12,7 +12,7 @@ There are several ways you can contribute to and participate in Primer:
 5. Give us feedback and report bugs
 6. Contribute to our open source repos
 
-All contributions to Primer need to follow our [code of conduct](https://github.com/github/primer/blob/main/CODE_OF_CONDUCT.md).
+All contributions to Primer need to follow our [code of conduct](https://github.com/primer/design/blob/main/CODE_OF_CONDUCT.md).
 
 If at any time you get stuck or need help, head to #primer on Slack or start a discussion in github/primer with your question.
 
@@ -35,7 +35,7 @@ If you're more certain about what you need, please open a [pattern request issue
 
 ## Improve the documentation
 
-Documentation is a core part of Primer, and, just as design and code, we’re always trying to make it better and more useful. If you notice something missing, a typo, or have an idea of how the docs can be improved, please start a new [discussion](https://github.com/github/primer/discussions), or submit a pull request with a fix (you can do this directly via the “Edit this page on GitHub” link on the footer of docs pages).
+Documentation is a core part of Primer, and, just as design and code, we’re always trying to make it better and more useful. If you notice something missing, a typo, or have an idea of how the docs can be improved, please start a new [discussion](https://github.com/primer/design/discussions), or submit a pull request with a fix (you can do this directly via the “Edit this page on GitHub” link on the footer of docs pages).
 
 Read the Primer guidelines for [writing documentation](/guides/contribute/documentation).