Major refactoring of code to match format used by Spanner and Video.

Author: ryanmats

vision/api/README.md vision/README.mdvision/api/README.md renamed to vision/README.md

@@ -20,7 +20,8 @@ Vision API from PHP.
 4.  **Install dependencies** via [Composer](http://getcomposer.org/doc/00-intro.md).
     Run `php composer.phar install` (if composer is installed locally) or `composer install`
     (if composer is installed globally).
-5.  Run `php vision.php`. The following commands are available:
+5.  For a basic demonstration of the Cloud Vision API, run `php quickstart.php`.
+6.  Run `php vision.php`. The following commands are available:
 ```
   face         Detect faces in an image using Google Cloud Vision API
   help         Displays help for a command
@@ -31,8 +32,11 @@ Vision API from PHP.
   property     Detect image proerties in an image using Google Cloud Vision API
   safe-search  Detect adult content in an image using Google Cloud Vision API
   text         Detect text in an image using Google Cloud Vision API
+  crop-hints   Detect crop hints in an image using Google Cloud Vision API
+  document-text    Detect document text in an image using Google Cloud Vision API
+  web          Detect web entities in an image using Google Cloud Vision API
 ```
-6. Run `php vision.php COMMAND --help` to print information about the usage of each command.
+7. Run `php vision.php COMMAND --help` to print information about the usage of each command.
 
 ## Contributing changes