added an utility function to update the list of available variables.
Updated get function to reduce the number of repetitions

updated README

extraction of 19 years is no spilt into several requests covering one year each.

worked on README
- added syntax highlighting to code snippets
- reworked information on examples
- added some links and now hiding urls
- added tested OS

added info how to run scripts/notebooks with poetry

split into usage of optional parameters and an example without a restriction, that will run for several days.

toar_rest_client: continued work on error handling.

under development

removed manual creation of request from get_sample_data.ipynb
this is handled in a different example (get_sample_data_manual.ipynb)

now new notebook for obtaining sample data is running
added old version as example how a request can be generated manual

worked on documentation of code

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

metadata:
- first round of documentation

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

Create a basic structure and added the first content