Update readme

README.md

@@ -4,11 +4,31 @@
 >and a little baby tomato. Baby tomato starts lagging behind. Poppa tomato gets
 >angry, goes over to the baby tomato, and smooshes him... and says, 'ketchup!'
 
-Misirlou's simple PHP backend. The juicy stuff is mostly in methods.
+Misirlou is Ripple's system for managing tournaments. This is the API/backend,
+and why write it in PHP, you may ask? Because I thought that the thing wouldn't
+have grown and that writing a few PHP files would have been enough. What a fool!
 
 To get started, simply copy config.sample.php to config.php, and edit the
 values in `$config`. Everything should be pretty obvious and need no
 explanation.
 
 Done that, create/update the database schema by running from the command line
-`migrate.php`.
+`migrate.php`. Finally, create an nginx config so that all requests are routed
+to /router.php:
+
+```nginx
+server {
+	autoindex on;
+	listen 80;
+	server_name quarterpounderwithcheese.org;
+	root /home/howl/oc/misirlou-api;
+	charset utf-8;
+	location / {
+		try_files $uri $uri/ /router.php;
+	}
+	include php;
+}
+```
+
+(The configuration above is actually not recommended in production - you should
+at least remove the autoindex.)