Update docs/github-settings/5. branch-protection.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: madkoo

docs/github-settings/5. branch-protection.md

@@ -55,7 +55,7 @@ branches:
 
 >[!TIP]
 >GitHub's API documentation defines these inputs and types:
->1. [Update a repository variable](https://docs.github.com/en/rest/actions/variables?apiVersion=2026-03-10#update-a-repository-variable)
+>1. [Update branch protection](https://docs.github.com/en/rest/branches/branch-protection?apiVersion=2026-03-10#update-branch-protection)
 
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