FIX missing space screwing up doxygen tags on install page.

Rebuild chm-docs.

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@550 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

doc/dox.h

@@ -236,7 +236,8 @@ respectively
 make -fmakefile.mingw
 @endcode
 for mingw-make. For a <i>-noboost</i>-Build, append 
-@codeNOBOOST=1
+@code
+NOBOOST=1
 @endcode
 
 @section assimp_st Single-threaded build