Update README.md

updating discussion link

Author: cmwilson21

README.md

@@ -68,7 +68,7 @@ In this course, you will:
 
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-Get help: [Post in our discussion board](https://github.com/skills/.github/discussions) • [Review the GitHub status page](https://www.githubstatus.com/)
+Get help: [Post in our discussion board](https://github.com/orgs/skills/discussions/categories/github-pages) • [Review the GitHub status page](https://www.githubstatus.com/)
 
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