correct typo

Author: tbrowder

doc/Programs/02-reading-docs.pod6

@@ -4,7 +4,7 @@
 
 =SUBTITLE p6doc - the Perl 6 pod reader
 
-Program C<p6doc> is a comman-line-interface (CLI) program to read
+Program C<p6doc> is a command-line-interface (CLI) program to read
 Perl 6 pod from B<installed> modules' source code, in contrast to
 running C<perl6 --doc=MODULE programfile> which reads Perl 6 pod from
 the named source file.