Update composer keywords

Author: randoum

composer.json

@@ -3,7 +3,7 @@
  "description": "AbstractEmailValidation - Wrapper to quickly start using the powerful AbstractAPI's email validation service in your projects.",
  "version": "0.1.0",
  "type": "library",
- "keywords": ["php", "api", "abstract", "abstractapi", "email", "emailvalidation", "email validation", "email verification", "wrapper", "library"],
+ "keywords": ["abstract", "abstractapi", "api", "email", "email validation", "email verification", "email-api", "email-api-php", "email-registration", "email-validation", "email-validation-input", "email-validation-plugin", "email-verification", "email-verifier", "emailvalidation", "free", "library", "php", "php-library", "validation-library", "wrapper"],
  "homepage": "https://github.com/abstractapi/php-email-validation",
  "readme": "README.md",
  "time": "2021-04-09",