Fix broken link (#8091)

Author: nuno-andre

docs/content/doc/advanced/ci-cd.en-us.md

@@ -22,7 +22,7 @@ menu:
 CI/CD solutions that have integration with Gitea. Following list is not complete,
 the purpose is to give a starting point to integrate a CI/CD process with your Gitea instance.
 
- - [Drone](https://drone.io) with [Gitea documentation](https://docs.drone.io/installation/gitea/)
+ - [Drone](https://drone.io) with [Gitea documentation](https://docs.drone.io/installation/providers/gitea/)
  - [Jenkins](https://jenkins.io/) with [Gitea plugin](https://plugins.jenkins.io/gitea)
  - [Agola](https://agola.io)
  - [Buildkite](https://buildkite.com) with [Gitea connector](https://github.com/techknowlogick/gitea-buildkite-connector)