For sections describing the "Foo Protocol", consistently use the capitalized
"Protocol" and not "protocol".
diff --git a/Doc/api/api.tex b/Doc/api/api.tex
index 96d2d76..780034a 100644
--- a/Doc/api/api.tex
+++ b/Doc/api/api.tex
@@ -1368,7 +1368,7 @@
\end{cfuncdesc}
-\section{Sequence protocol}
+\section{Sequence Protocol}
\begin{cfuncdesc}{int}{PySequence_Check}{PyObject *o}
Return 1 if the object provides sequence protocol, and 0
@@ -1452,7 +1452,7 @@
expression: \code{o.index(value)}.
\end{cfuncdesc}
-\section{Mapping protocol}
+\section{Mapping Protocol}
\begin{cfuncdesc}{int}{PyMapping_Check}{PyObject *o}
Return 1 if the object provides mapping protocol, and 0