Include cover page

This adds the cover page as first page.

book/book.tex

@@ -26,22 +26,16 @@
   {./images/external/}
 }
 
-
-\title{%
-  The Sourdough Framework\\
-  \large How to master making bread at home\\
-  \small - the bread code community book -}
-
-\author{Hendrik Kleinwächter}
-\date{\today}
-
 \advance\cftsecnumwidth 0.5em\relax
 \advance\cftsubsecindent 0.5em\relax
 \advance\cftsubsecnumwidth 0.5em\relax
 \begin{document}
 
 \begin{titlepage}
-\maketitle
+	\centering
+  \includegraphics[width=\textwidth]{cover-page}
+  Version:
+  \today
 \end{titlepage}