diff --git a/gitlab-runner_config_example/docker/etc/gitlab-runner/config.toml b/gitlab-runner_config_example/docker/etc/gitlab-runner/config.toml
index fe6cca0..e28da7a 100644
--- a/gitlab-runner_config_example/docker/etc/gitlab-runner/config.toml
+++ b/gitlab-runner_config_example/docker/etc/gitlab-runner/config.toml
@@ -1,3 +1,7 @@
+# FIRST, generate a [[runners]] block using command 'sudo gitlab-runner register'
+# and THEN, add more options & modify options..
+# because the registration must be done explicitly from commnadline.. to get A_GENERATED_TOKEN.
+
 # example setup running CI @ docker
 # with this, every commit will refresh whole python packages.. will take 1 min. ==> slow. but up to date all the time..