add link to columns

bug fix
change namespace for wordpress
bug fix variable issue

Author: mehdiraized

README.md

@@ -4,7 +4,7 @@
 **Tags:** api, rest api, custom api, api builder, wp json  
 **Requires at least:** 5.0  
 **Tested up to:** 6.6.1  
-**Stable tag:** 1.0.2
+**Stable tag:** 1.0.3
 **Requires PHP:** 7.0  
 **License:** GPLv2 or later  
 **License URI:** https://www.gnu.org/licenses/gpl-2.0.html