Prefer MathJax version of the manual

Author: fingolfin

PackageInfo.g

@@ -100,7 +100,7 @@ AbstractHTML := "The PatternClass package is build on the idea of token passing
 PackageDoc := rec(
   BookName  := "PatternClass",
   ArchiveURLSubset := ["doc"],
-  HTMLStart := "doc/chap0.html",
+  HTMLStart := "doc/chap0_mj.html",
   PDFFile   := "doc/manual.pdf",
   SixFile   := "doc/manual.six",
   LongTitle := "A permutation pattern class package",