Fix comment.

Author: alvadb

lib/commands/oad.js

@@ -18,11 +18,11 @@ exports.builder = {
   },
   o: {
     alias: 'oldTagName',
-    describe: 'The tag name for the old specification file.  If include it indicates that the old spec file is a readme file',
+    describe: 'The tag name for the old specification file.  If included it indicates that the old spec file is a readme file',
   },
   n: {
     alias: 'newTagName',
-    describe: 'The tag name for the new specification file.  If include it indicates that the new spec file is a readme file',
+    describe: 'The tag name for the new specification file.  If included it indicates that the new spec file is a readme file',
   }
 };