Update README.md

Author: biscolab

README.md

@@ -12,6 +12,7 @@ Available reCAPTCHA versions:
 | Package version | PHP version | Laravel version |
 |-----------------|-------------|-----------------|
 | 3.x             | 7.1 or greater | 5.5 or greater |
+| 2.x             | 5.5.9|7.0 or greater | 5.0 or greater |
 
 Are you still using PHP 5.x or 7.0? Please go to [V2](https://github.com/biscolab/laravel-recaptcha/tree/v2.0.4)