title in a pdf (#1059)

This just put the title and the logo into a pdf

---------

Co-authored-by: rocky <[email protected]>
Co-authored-by: R. Bernstein <[email protected]>

Author: mmatera

mathics/doc/latex/mathics.tex

@@ -80,8 +80,7 @@
 \definecolor{pythonstring}{rgb}{0,0.5,0}
 
 \title{
-    \includegraphics[height=0.1\linewidth]{logo-heptatom.pdf}
-    \huge Mathics3
+    \includegraphics[height=0.1\linewidth]{mathics-title.pdf}
 \\[.5em]
   {\LARGE\color{subtitle}\textit{\textmd{A free, open-source alternative to Mathematica}}}
   \par\textmd{\Large Mathics3 Core Version \MathicsCoreVersion}