docs: use variabilized GitLab server FQDN in CI/CD component reference URLs

README.md

@@ -14,7 +14,7 @@ Add the following to your `.gitlab-ci.yml`:
 ```yaml
 include:
   # 1: include the component
-  - component: gitlab.com/to-be-continuous/maven/gitlab-ci-maven@3.11.1
+  - component: $CI_SERVER_FQDN/to-be-continuous/maven/gitlab-ci-maven@3.11.1
     # 2: set/override component inputs
     inputs:
       # ⚠ this is only an example
@@ -526,7 +526,7 @@ All authentication methods should use masked GitLab environment variables.
 ```yaml
 include:
   # main template
-  - component: gitlab.com/to-be-continuous/maven/gitlab-ci-maven@3.11.1
+  - component: $CI_SERVER_FQDN/to-be-continuous/maven/gitlab-ci-maven@3.11.1
   # Jib is implemented as an extension to Maven, and uses supporting features of the TBC Maven template
-  - component: gitlab.com/to-be-continuous/maven/gitlab-ci-maven-jib@3.11.1
+  - component: $CI_SERVER_FQDN/to-be-continuous/maven/gitlab-ci-maven-jib@3.11.1
 ```