We miss out of examples on how to use the MediaWiki API in: https://gerrit.wikimedia.org/g/mediawiki/extensions/examples

If we add a couple of examples there we get:

1. We can verify that when we release a new wdio-mediawiki release, it really works to upgrade.
2. We get a change commit showing how to upgrade. That is good to have when we upgrade to 6.0 (removing mwbot).

AC:

• Add test that uses mwbot directly
• Add a test that uses the createAccount functionality

These two tests will help users to get ann example on how to upgrade.

This task should be done before we release 6.0 so we can dogfood our own release when upgrading examples.