How to best manually update the Cwicly plugin?

Hi there. Could somebody tell me (or point me to where it is mentioned in the docs, cannot find) what the recommended procedure for updating the Cwicly plugin is, in case it has not been updated automatically?

I would guess:

  1. Manually delete plugin in the file system
  2. Replace with new version
  3. Update HTML and CSS

Would that be correct?

Thank you!