Fix markup so this document will format.

Doc/dist/dist.tex

@@ -576,7 +576,7 @@ Scripts are files containing Python source code, indended to be started
 from the command line.
 Distutils doesn't provide much functionality for the scripts: the only
 support Distutils gives is to adjust the first line of the script
-if it starts with \code{#!} and contains the word ``python'' to refer
+if it starts with \code{\#!} and contains the word ``python'' to refer
 to the current interpreter location.
 
 The \option{scripts} option simply is a list of files to be handled