Added Documentation using Sphinx to the project

docs/source/goulag_sort_detailed_explanation.rst

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+.. _goulag_sort_detailed_explanation:
+
+Goulag Sort Explained
+========================

docs/source/goulagsort_package.rst

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+goulag_sort Package
+===================
+
+.. automodule:: goulag_sort
+   :members:
+   :undoc-members:
+   :show-inheritance:
+

docs/source/modules.rst

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+goulag_sort
+===========
+
+.. toctree::
+   :maxdepth: 4
+
+   goulagsort_package

requirements.txt

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+recommonmark~=0.7.1
+pytest~=8.3.5
+setuptools~=68.2.0