Readme's search example not working for Zammad >=4.0

[Deeptwix]

Hey,

I was struggling with the search example from the readme and realised that it was because the example used in the search for a ticket uses the syntax for Zammad <=3.6 (state: new) and not the new one (state.name: new). As in : https://user-docs.zammad.org/en/latest/advanced/search.html

If it's meant to be updated, I can open a PR 🤷‍♀️

Cheers

[mgruner]

Please feel free to do so!