update title

book.tex

@@ -100,14 +100,14 @@ showstringspaces=false
 
 \frontmatter
 
-\HalfTitle{Essentials of Compilation, \python{Python}\racket{Racket} Edition}
+\HalfTitle{Essentials of Compilation \\ An Incremental Approach in \python{Python}\racket{Racket}}
 
 
 \halftitlepage
 
-\Title{Essentials of Compilation, \python{Python}\racket{Racket} Edition}
+\Title{Essentials of Compilation}
 
-\Booksubtitle{The Incremental, Nano-Pass Approach}
+\Booksubtitle{An Incremental Approach in \python{Python}\racket{Racket}}
 
 %\edition{First Edition}