[Sphinx] Add chapter 21

Thanks to Pierre Letouzey for porting this chapter.

1 files changed, 2 insertions, 0 deletions

diff --git a/doc/sphinx/index.rst b/doc/sphinx/index.rst
index 4566db494..f1fbd2b7d 100644
--- a/doc/sphinx/index.rst
+++ b/doc/sphinx/index.rst
@@ -43,6 +43,8 @@ Table of contents
 .. toctree::
    :caption: Addendum
 
+   addendum/omega
+
 .. toctree::
    :caption: Reference