use relative url

Author: nico1510

content/manuals/build/ci/github-actions/share-image-jobs.md

@@ -7,7 +7,7 @@ keywords: ci, github actions, gha, buildkit, buildx
 
 As each job is isolated in its own runner, you can't use your built image
 between jobs, except if you're using [self-hosted runners](https://docs.github.com/en/actions/hosting-your-own-runners/about-self-hosted-runners)
-or [Docker Build Cloud](https://docs.docker.com/build-cloud/).
+or [Docker Build Cloud](/build-cloud).
 However, you can [pass data between jobs](https://docs.github.com/en/actions/using-workflows/storing-workflow-data-as-artifacts#passing-data-between-jobs-in-a-workflow)
 in a workflow using the [actions/upload-artifact](https://github.com/actions/upload-artifact)
 and [actions/download-artifact](https://github.com/actions/download-artifact)