DOC: update badges on our README

**Is your feature request related to a problem? Please describe.**

Some new badges could be added to our README, for example:

**Describe the solution you'd like**

- Suportted python version (e.g. 3.9 | 3.10 | ... | 3.12)
- Link to rocketpy on conda forge
- Black formatting

Maybe: Pylint, codefactor, 