Minor grammar tweaks

doc/Language/nativecall.pod6

@@ -187,8 +187,8 @@ When the signature of your native function needs a pointer to some native type
     sub my_version(int32 is rw, int32 is rw) is native('foo') { * }
     my_version(my int32 $major, my int32 $minor); # Pass a pointer to
 
-When you just want to use/pass a pointer using Pointer class you have to
-create the pointers when you declare them. Then you can do this without specifying
+When you just want to use/pass a pointer using the C<Pointer> class you have to
+create the pointers when declaring them; then you can do this without specifying
 what type it points to. Here is an example:
 
     use NativeCall;