- added info to statistics applied during request to TOAR-DB

metadata:
- first round of documentation

added first documentation to classes and their methods

started documentation as example

fixed some typos.

added comments to produce_data example

- fixed bug in plotting of station positions

README.md
- started rework of documentation of examples

.gitignore added directory used for examples

made adoptions to the updates by Simon

- added creation of subdiretories
- added some output

Create a basic structure and added the first content