Add program

docs/source/program.rst

 Programming on esieabot
 =======================
 
-.. note:: Section under construction
+This section is dedicated to learning how to program esieabot. It requires a basic knowledge of the programming languages mentionned.
 
-A legacy document, made in june 2022, is available here: https://esieabot.esiea.fr/wp-content/uploads/2022/08/gpio.pdf
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+.. toctree:: 
+    :maxdepth: 2
+
+    program/c.rst
+    program/python.rst
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docs/source/program/c.rst

+C programming on esieabot
+=========================
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docs/source/program/python.rst

+Python programming on esieabot
+==============================
+
+.. note:: This section is under construction
+
+If you'd like to help improve the esieabot, you can join us on `Discord <https://discord.gg/K3ShWwtsvz>`_ or contribute directly on our `GitLab <https://gitlab.esiea.fr/esieabot>`_.
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