Shows how to create a PDF from sphinx docs

sphinx-autobuild -b simplepdf  -W -E -T  --watch hamilton/ -a docs /tmp/mydocs

This needs simplepdf I believe and the
conf.py changes (I believe).

docs/conf.py

diff --git a/docs/conf.py b/docs/conf.py
index 2ace015..21b207c 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -25,12 +25,19 @@
         "color-announcement-text": "#091E42",
     },
 }
+
+rinoh_documents = [
+    dict(doc="index", target="manual")  # top-level file (index.rst)
+]  # output file (manual.pdf)
+
+
 extensions = [
     "sphinx.ext.autodoc",
     "sphinx.ext.autosummary",
     "myst_parser",
     "sphinx_sitemap",
     "docs.data_adapters_extension",
+    "sphinx_simplepdf",
 ]
 
 # for the sitemap extension ---