improve documentation of scheduler settings

[elfkuzco]

Changes

• rephrase documentation of scheduler settings
• change defaults for dev docker-compose.yaml

This resolves #34

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 72.83%. Comparing base (5ac22c5) to head (d301246). Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #36 +/- ## ======================================= Coverage 72.83% 72.83% ======================================= Files 28 28 Lines 795 795 Branches 70 70 ======================================= Hits 579 579 Misses 204 204 Partials 12 12 ```

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