CI Pipeline proposal

[guija]

Hi,

here is a proposal of a github based CI pipeline. It includes the following steps:

• Execute flake8 python checks.
• Execute pylint python checks.
• Executed tests. A dummy test was added.

If one of the steps fail the whole pipeline run fails. It can then be configured by you in the main repository (See https://stackoverflow.com/a/58655352/3623232 ).
Here you see an example of the executed pipelines: https://github.com/guija/gorganizer/actions
Currently the pipeline is failing because pylint is not passing. I think the problems outlined by pylint and flake8 should be discussed / fixed.
You can check the github workflow documentation (specifically the python one here: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python)

I also fixed two typos in the README.

Regards,
Guillermo