add when on redeploy task ...

README.md

@@ -32,4 +32,14 @@ RUNNER_INSTANCE: https://your_gitea.com/
 ```
 Hint: A token can register multible runners, in some cases it can make sense var RUNNER_TOKEN and RUNNER_LABELS define in a group.
 
-For all vars look at [defaults](defaults/main.yml)!
+For all vars look at [defaults](defaults/main.yml)!
+
+## features
+### redeploy a runner
+Somtimes it is need to redeploy a runner (with other token e.g.). in this case you can simply use this:
+
+```yaml
+RUNNER_REDEPLOY: true
+```
+Hint: should remove after usage!
+With this option ansible delete the `.runner` file. Without this file ansible do a new registration for this runner.