Added some periods

S11-modules.pod

@@ -429,15 +429,15 @@ The pieces are interpreted as follows:
 =item *
 
 Anything matching C<< [<ident> '::']* <ident> >> is treated as a
-package name
+package name.
 
 =item *
 
-Anything matching C<< <alpha>+ \: \S+ >> is treated as an author(ity)
+Anything matching C<< <alpha>+ \: \S+ >> is treated as an author(ity).
 
 =item *
 
-Anything matching C<< v? [\d+ '.']* \d+ >> is treated as a version number
+Anything matching C<< v? [\d+ '.']* \d+ >> is treated as a version number.
 
 =back
 
@@ -457,7 +457,7 @@ for short.
 
 Here the real name of the module starts C<Dog>, but we refer to it
 as C<Pooch> for the rest of this file.  Aliasing is handy if you need to
-interface to more than one module named C<Dog>
+interface to more than one module named C<Dog>.
 
 If there are extra classes or modules or packages declared within
 the same file, they implicitly have a long name including the file's