update README.md

Author: mikhail-klimko

README.md

@@ -10,10 +10,10 @@ git checkout -b onprem-X.Y.Z release-X.Y
 ```
 - Update `.version` in Chart.yaml
 - Update `artifacthub.io/changes` annotation in Chart.yaml
-- [optional] Update `dependencies` in Chart.yaml
-- [optional] Update `values.yaml`, `templates/**`, etc with required changes
+- *optional* Update `dependencies` in Chart.yaml
+- *optional* Update `values.yaml`, `templates/**`, etc with required changes
 - Run `helm dep update` to update dependencies
-- [optional] Run `./codefresh/.ci/runtime-images.sh` 
+- *optional* Run `./codefresh/.ci/runtime-images.sh` 
 - Run `./codefresh/.ci/helm-docs.sh`
 - Commit changes and open the PR against the corresponding `release-<MAJOR>.<MINOR>` branch
 - Comment `/test` to trigger CI pipeline