(no double usage of ":" in the tag name)

 by omitting image deletion

- correct path to Dockerfile in CI script
- deactivate CI-Pipeline filter (existing tag)

- user todo-application path

- this could disrupt the effective publishing of the images
- starting to write nice commit messages ;)

- get commands right

Now tweakin it a little bit more.

- I assume it doesnt support this level of depth

- you should correct all paths...