Start using sphinx's TODO module.

doc/conf.py

@@ -24,8 +24,12 @@ author = 'Hugo Hörnquist'
 extensions = [
     'sphinx.ext.autodoc',   # Automatically extract source from pypthon files
     'sphinx.ext.viewcode',  # Adds source viewer to output
+    'sphinx.ext.todo',      # Add todo-lists to output
 ]
 
+# Actually enable the todo list
+todo_include_todos = True
+
 # Fancy type aliases.
 # For this to work, each module has to individually run
 #   from __future__ import annotations

doc/index.rst

@@ -18,3 +18,7 @@ Indices and tables
 * :ref:`genindex`
 * :ref:`modindex`
 * :ref:`search`
+
+TODO
+====
+.. todolist::

muppet/lookup.py

@@ -18,9 +18,8 @@ Example
             .ref('text') \
             .exec()
 
-TODO
-----
-- ``select``
+.. todo::
+  ``select``
   Selects all values from a list which matches a given expression.
   This would however require us to manage multiple values at once.
 """