Improve cli documentation for bulbs and power strips (#123)

docs/source/conf.py

@@ -31,6 +31,7 @@ extensions = [
     "sphinx.ext.autodoc",
     "sphinx.ext.coverage",
     "sphinx.ext.viewcode",
+    "sphinx.ext.todo",
     "sphinxcontrib.programoutput",
 ]
 
@@ -55,6 +56,8 @@ html_theme = "sphinx_rtd_theme"
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ["_static"]
 
+todo_include_todos = True
+
 
 def setup(app):
     # add copybutton to hide the >>> prompts, see https://github.com/readthedocs/sphinx_rtd_theme/issues/167