Check readme examples

[Pfeil]

The readme examples are partially outdated. For example, it still shows the addContent method.

• This should be fixed and the examples should be checked
• Consider some automated workflow for the examples. The Readme is a bit bloated with examples anyway. We should consider making tests out of them (if they aren't) and link to them instead. This will shorten the readme. We could keep one representational example in the readme so the user gets an immediate idea of how this will work.

Side note: I added a transition guide in the release notes of v2.0.0 regarding the renamed addContent function.

[ThomasJejkal]

Why not providing an 'examples' package containing the code snippets? They may not be usable immediately, but may serve as good basis for own integrations.

[Pfeil]

I agree, this is what I meant by "consider making tests out of them".