Added contributing section to long-form documentation.

CONTRIBUTING.md

@@ -6,7 +6,7 @@ Please keep the following in mind when contributing:
 
 - The main branch of `mirp` is protected. You can therefore make a pull request for your contribution to a 
   development branch of the intended future version.
-- If you introduce new functionality, this functionality should be tested as part of the tests in the `test`directory. 
+- If you introduce new functionality, this functionality should be tested as part of the tests in the `test` directory. 
   After implementation, please ensure that all tests complete without errors by running `pytest` from your IDE or 
   console using `python -m pytest test` from the mirp main directory.  
 - Code is styled according to [PEP8](https://peps.python.org/pep-0008/). Using a linter or IDE with automated linter 

docs_source/source/contributing.rst

@@ -0,0 +1,21 @@
+Contributing
+============
+
+MIRP is open-source software, hosted on `GitHub <https://github.com/oncoray/mirp>`_. If you have ideas or code to
+contribute, please first open an `issue <https://github.com/oncoray/mirp/issues>`_. We will then discuss your ideas
+and create an implementation roadmap.
+
+Please keep the following in mind when contributing:
+
+* The main branch of MIRP is protected. You can therefore make a pull request for your contribution to a
+  development branch of the intended future version.
+* If you introduce new functionality, this functionality should be tested as part of the tests in the ``test``
+  directory. After implementation, please ensure that all tests complete without errors by running ``pytest`` from your
+  IDE or console using ``python -m pytest test`` from the mirp main directory. Likewise existing automated tests should
+  pass.
+* Code is styled according to `PEP8 <https://peps.python.org/pep-0008/>`_. Using a linter or IDE with automated linter
+  is recommended.
+* Function, class and method documentation is done using Numpy-flavoured
+  `docstrings <https://numpydoc.readthedocs.io/en/latest/format.html>`_.
+  `Long-form documentation <https://oncoray.github.io/mirp/>`_ is partially created from function, class and method
+  documentation, embedded in restructured text files in the ``docs_source`` directory.

docs_source/source/index.rst

@@ -13,6 +13,14 @@ Welcome to MIRP
    mask_labels
    deep_learning
    quantitative_image_analysis
+   contributing
+
+What is radiomics?
+------------------
+
+
+What is MIRP?
+-------------
 
 Medical Image Radiomics Processor (MIRP) is an IBSI-compliant [Zwanenburg2020]_, [Whybra2024]_ python package for
 medical image  analysis. MIRP focuses on radiomics applications and supports computation of features for conventional