Add missing word

Doc/dist/dist.tex

@@ -1467,7 +1467,7 @@ script as follows:
   \lineii{\%description (section)}{\option{long\_description}}
 \end{tableii}
 
-Additionally, there many options in \file{.spec} files that don't have
+Additionally, there are many options in \file{.spec} files that don't have
 corresponding options in the setup script.  Most of these are handled
 through options to the \command{bdist\_rpm} command as follows: