Adding title, width & height and updating README

Generator/CaptchaGenerator.php

@@ -22,6 +22,7 @@ class CaptchaGenerator {
     public function generate()
     {
         $i = imagecreatetruecolor(120,40);
+
         $col = imagecolorallocate($i, mt_rand(0,110), mt_rand(0,110), mt_rand(0,110));
 
         imagefill($i, 0, 0, 0xFFFFFF);

README.md

@@ -56,6 +56,19 @@ You can use the "captcha" type in your forms this way:
 Note that the generated image will be embeded in the HTML document, to avoid dealing
 with route and subrequests.
 
+Form theming
+============
+
+If you want to put the image in an other way, you can form theme `captcha_bundle` (this
+is the default behavior) :
+
+```html
+{% block captcha_widget %}
+    <img src="{{ captcha_code }}" title="captcha" width="120" height="40" />
+    {{ form_widget(form) }}
+{% endblock %}
+```
+
 License
 =======
 

Resources/views/captcha.html.twig

@@ -1,4 +1,4 @@
 {% block captcha_widget %}
-    <img src="{{ captcha_code }}" /><br />
+    <img src="{{ captcha_code }}" title="captcha" width="120" height="40" />
     {{ form_widget(form) }}
 {% endblock %}