clarify readme a tad

README.md

@@ -12,8 +12,8 @@ It _should_ also work for the following Yamaha AVR models:
 
 YCast is for you if:
  * You do not want to use a proprietary streaming service
- * You are sick of loading and/or downtimes of the vRadio server
- * You are unsure about the vTuner service's future
+ * You are sick of loading delays and/or downtimes of the vTuner service
+ * You are unsure about the continuation of the service from Yamaha/vTuner
 
 ## Dependencies:
 Python version: `3`
@@ -35,7 +35,7 @@ itself gets handled by the AVR directly, i.e. you can run it on a low-spec RISC
 
 * Run `ycast.py` on the target machine.
 
-### Station configuration
+### stations.yml
 ```
 Category one name:
   First awesome station name: first.awesome/station/URL
@@ -46,27 +46,30 @@ Category two name:
   Fourth awesome station name: fourth.awesome/station/URL
 ```   
 
-You can also have a look at `stations.yml.example` for how it can be set up.
+You can also have a look at the provided [example](stations.yml.example) to better understand the configuration.
 
 
-## Firewall rules
-
- * The server running YCast does __not__ need internet access
- * The Yamaha AVR needs access to the internet (i.e. to the station URLs you defined)
- * The Yamaha AVR needs to reach port `80` of the machine running YCast
+## Web server configuration
 
-## Web redirects
+While you can simply run YCast with root permissions listening on all interfaces on port 80, this may not be desired for various reasons.
 
-You can (__and should__) change the `listen_port` and `listen_address` variables in `ycast.py` if you are already running a HTTP server on the target machine
-and/or want to proxy or encase YCast access.
+You can (and should) change the `listen_port` and `listen_address` variables in `ycast.py` if you are already running a HTTP server on the target machine
+and/or want to proxy or restrict YCast access.
 
 It is advised to use a proper webserver (e.g. Nginx) in front of YCast if you can.
 Then, you also don't need to run YCast as root and can proxy the requests to YCast running on a higher port (>1024) listening only on `localhost`.
 
-You _need_ to redirect the following URLs from your webserver to YCast (of course listening to requests to `radioyamaha.vtuner.com`):
+You need to redirect the following URLs from your webserver to YCast (listening to requests to `radioyamaha.vtuner.com`):
  * `/setupapp`
  * `/ycast`
 
+__Attention__: Do not rewrite the request transparently. YCast expects the complete URL (i.e. including `/ycast/`).
+
+## Firewall rules
+
+ * The server running YCast does __not__ need internet access
+ * The Yamaha AVR needs access to the internet (i.e. to the station URLs you defined)
+ * The Yamaha AVR needs to reach port `80` of the machine running YCast
 
 ## Caveats