doc: remove old and not-true-anymore statements.

diff --git a/doc/doxygen.rst b/doc/doxygen.rst
index 2c290c32405a5cc162bc0dce459ad1b9f5ebb8d0..7129da3a99958c8d343aaa559a5dce4289c22ff4 100644 (file)
--- a/doc/doxygen.rst
+++ b/doc/doxygen.rst
@@ -73,9 +73,11 @@ switch.
     that case the documentation mentions which revision to use or which patch
     you need to apply.
 
-Everything you need apart from Doxygen itself is a Python script and a bunch of
-template files. You can get that by cloning :gh:`the m.css GitHub repository <mosra/m.css$master/doxygen>`
-and looking into the ``doxygen/`` directory:
+The base is contained in a single Python script and related style/template
+files, for advanced features such as math rendering it'll make use of internals
+of some `m.css plugins <{filename}/plugins.rst>`_. Clone
+:gh:`the m.css GitHub repository <mosra/m.css$master/doxygen>` and look into
+the ``doxygen/`` directory:
 
 .. code:: sh