E<> doesn't work in perl6 --doc; use a comma

doc/Language/modules.pod6

@@ -24,7 +24,7 @@ files in a namespace.
 Module distributions (in the I<set of related source files> sense) in Perl 6
 have the same structure as any distribution in the Perl family of languages:
 there is a main project directory containing a C<README> and a C<LICENSE> file,
-a C<lib> directory for the source filesE<mdash>which may be individually
+a C<lib> directory for the source files, which may be individually
 referred to as modules and/or may themselves define modules with the C<module>
 keyword N<As L<synopsis S11|https://design.perl6.org/S11.html#Units> says:
 Confusing? Yes it is.>, a C<t> directory for tests, and possibly a C<bin>