Fix #595

Changes proposed in this pull request:

• RTD entry for defining parameters as timeseries

The following steps were realized, as well (if applies):
❌ Use in-line comments to explain your code
❌ Write docstrings to your code (example docstring)
❌ For new functionalities: Explain in readthedocs
❌ Write test(s) for your new patch of code (pytests, assertion debug messages)
❌ Update the CHANGELOG.md
❌ Apply black (black . --exclude docs/)
❌ Check if benchmark tests pass locally (EXECUTE_TESTS_ON=master pytest)

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