chore: small update

Author: andrepimpao

README.md

@@ -25,7 +25,12 @@ require_once 'vendor/autoload.php';
 Simple usage looks like:
 
 ```php
+use ProgrammatorDev\YetAnotherPhpValidator\Validator;
 
+$ageValidator = Validator::notBlank()->greaterThanOrEqual(18);
+
+$ageValidator->validate(16); // returns false
+$ageValidator->assert(16, 'Age'); // throws exception: The "Age" value should be greater than or equal to "18", "16" given.
 ```
 
 ## Documentation

src/Rule/Range.php

@@ -44,8 +44,7 @@ public function assert(mixed $value, string $name): void
         }
 
         if (
-            !Validator
-                ::greaterThan($minConstraint)
+            !Validator::greaterThan($minConstraint)
                 ->validate($maxConstraint)
         ) {
             throw new UnexpectedValueException(
@@ -54,8 +53,7 @@ public function assert(mixed $value, string $name): void
         }
 
         if (
-            !Validator
-                ::greaterThanOrEqual($minConstraint)
+            !Validator::greaterThanOrEqual($minConstraint)
                 ->lessThanOrEqual($maxConstraint)
                 ->validate($value)
         ) {