Fixed typo and font-control problem reported by Detlef Lannert

<lannert@lannert.rz.uni-duesseldorf.de>.

Doc/lib/libsite.tex

@@ -12,14 +12,14 @@ modules that needed to use site-specific modules would place
 \samp{import site} somewhere near the top of their code.  This is no
 longer necessary.
 
-This will append site-specific paths to to the module search path.
+This will append site-specific paths to the module search path.
 \indexiii{module}{search}{path}
 
 It starts by constructing up to four directories from a head and a
 tail part.  For the head part, it uses \code{sys.prefix} and
 \code{sys.exec_prefix}; empty heads are skipped.  For
 the tail part, it uses the empty string (on Macintosh or Windows) or
-it uses first \file{lib/python\var{version}/site-packages} and then
+it uses first \file{lib/python{\var{version}}/site-packages} and then
 \file{lib/site-python} (on \UNIX{}).  For each of the distinct
 head-tail combinations, it sees if it refers to an existing directory,
 and if so, adds to \code{sys.path}, and also inspected for path