Update README for installing via composer.

Author: Kent Richards

README.md

@@ -1,15 +1,21 @@
 # PHP-PM HttpKernel Adapter
 
-This is a fork of PHP-PM's HttpKernel adapter for integrating Drupal with PHP-PM (therefore, also with ReactPHP). See https://github.com/php-pm/php-pm, https://github.com/php-pm/php-pm-httpkernel.
+This is a fork of PHP-PM's HttpKernel adapter for integrating Drupal with PHP-PM (therefore, also with ReactPHP).
 
-The code is in pre-alpha -- very experimental.  Last tested against `drupal-8.0.2`.
+See https://github.com/php-pm/php-pm, https://github.com/php-pm/php-pm-httpkernel.
+
+The code is in alpha -- very experimental.  Last tested against `drupal-8.0.2`.
+
+View / report issues at https://github.com/kentr/php-pm-drupal/issues.
 
 ### Setup
 
-  1. Install PHP-PM as described in the project docs.
+  1. Install Drupal.
 
-  2. Replace the `vendor/php-pm/httpkernel-adapter` directory with this code.
+  2. From the Drupal web root, install this project with composer: `composer require kentr/php-pm-drupal-adapter`.  This will also install PHP-PM and the default React <-> Symfony bridge (php-pm/httpkernel-adapter).
 
-  3. Apply `kentr-allow-repeated-setSitePath-in-DrupalKernel.patch` to Drupal core.
+  3. Apply these patches to Drupal core:
+    * `vendor/kentr/php-pm-drupal-adapter/patches/kentr-allow-repeated-setSitePath-in-DrupalKernel.patch`
+    * `vendor/kentr/php-pm-drupal-adapter/patches/stop_using-2505339-24.patch`
 
   4. Start php-pm with `sudo <absolute path to web root>/vendor/bin/ppm start <absolute path to web root> --bridge=httpKernel --bootstrap=PHPPM\\Bootstraps\\Drupal`.  Example: `sudo vendor/bin/ppm start /var/www/html/ --bridge=httpKernel --bootstrap=PHPPM\\Bootstraps\\Drupal`