minor fixes in examples

Signed-off-by: Moritz Lenz <moritz@faui2k3.org>

src/multi-dispatch.pod

@@ -18,7 +18,7 @@ U<http://github.com/moritz/json/>.
 
 =begin programlisting
 
-    multi to-json(Real  $d) { ~$d }
+    multi to-json(Real $d) { ~$d }
     multi to-json(Bool $d) { $d ?? 'true' !! 'false'; }
     multi to-json(Str  $d) {
         '"'
@@ -115,7 +115,7 @@ case the type of the parameter defaults to C<Any>, the root of the "normal"
 branch of the type hierarchy.  More interestingly, the C<where {!defined $d}>
 clause is
 a I<constraint>, which defines a so-called I<subset type>.  In this case, this
-candidate will matches only I<some> values of the type C<Any> -- those where
+candidate will match only I<some> values of the type C<Any> -- those where
 the value is undefined.
 
 X<nominal type>
@@ -240,7 +240,7 @@ more specific match in the nominal type.
     multi a(Any $x where { $x > 0 }) { 'Constraint'   }
     multi a(Int $x)                  { 'Nominal type' }
 
-    say a(3), ' wins';       # says B<Nominal type>
+    say a(3), ' wins';       # says B<Nominal type wins>
 
 =end programlisting