wording and bug fixes

mt-book-xelatex.tex

@@ -136,7 +136,7 @@
 %\include{Chapter3/chapter3}
 %\include{Chapter4/chapter4}
 %\include{Chapter5/chapter5}
-\include{Chapter6/chapter6}
+%\include{Chapter6/chapter6}
 %\include{Chapter7/chapter7}
 %\include{Chapter8/chapter8}
 %\include{Chapter9/chapter9}
@@ -149,7 +149,7 @@
 %\include{Chapter16/chapter16}
 %\include{Chapter17/chapter17}
 %\include{Chapter18/chapter18}
-%\include{ChapterAppend/chapterappend}
+\include{ChapterAppend/chapterappend}
 
 
 %----------------------------------------------------------------------------------------