Usage example in readme.md

Author: kek91

README.md

@@ -3,7 +3,7 @@
 
 Easy to use PHP class for validating user input from HTML form input fields or anywhere else you may use it.
 
-Please note this is only `validation`, for very critical operations you may need to consider `sanitizing` before submitting user data to DB etc. I assume you're already well aware of the dangers.
+Please note this is only `validation`, for critical operations you may need to consider `sanitizing` before submitting user data to DB etc. I assume you're already well aware of the dangers.
 
 ### Features
 
@@ -12,14 +12,40 @@ Please note this is only `validation`, for very critical operations you may need
 - Custom error messages for each input field
 - Lightweight and fast
 - Validate different types of input:
- - Telephone number
- - Email address
- - Name
- - Text
+ - Verify valid email address
+ - Alphabetic only
+ - Numeric only
  - ++
 
-### Usage examples
+### Usage example
 
+**HTML form**
 ```
-...
+<form>
+    <input type="text" name="email">
+    <input type="submit">
+</form>
+```
+**PHP processing**
+```
+$validate = new Validate();
+$validation = $validate->check($_POST, array(
+    'email' => array(
+        'required' => true,
+        'mailcheck' => true
+    )
+));
+
+if($validation->passed()) {
+    echo 'Validation passed!';
+}
+else {
+    echo 'Validation errors:';
+    echo '<ul>';
+    foreach($validation->errors() as $error)
+    {
+        echo '<li>'.ucfirst($error).'</li>';
+    }
+    echo '</ul>';
+}
 ```