Many additions to the documentation

Closes #86 (closed) , #85 (closed) , #95 (closed)

docs/source/dependencies.rst

@@ -14,4 +14,4 @@ Optional dependencies that are not necessary to run plotID but more to contribut
 - `sphinx <https://www.sphinx-doc.org/en/master/>`_: Program to build documentation. For example, this documentatio is generated with the help of sphinx.
 - `sphinx-autoapi <https://sphinx-autoapi.readthedocs.io/en/latest/>`_: Generates documentation files automatically from documentation inside the code. This has the advantage that code can be documented inside the code but can also be read in the documentation without having two places with the same content.
 - `sphinx-rtd-theme <https://sphinx-rtd-theme.readthedocs.io/en/stable/>`_: Readthedocs theme for nicer documentation style.
-- `myst-parser <https://myst-parser.readthedocs.io/en/latest/>`_: Extenstion for sphinx, e.g. to include markdown files in the documentation. That allows to include plotID's README.md in the documentation without storing it at two different places.
+- `myst-parser <https://myst-parser.readthedocs.io/en/latest/>`_: Extension for sphinx, e.g. to include markdown files in the documentation. That allows to include plotID's README.md in the documentation without storing it at two different places.