Document prefix option along with proxy configuration. See #12.

docs/configuration.rst

@@ -5,6 +5,16 @@ Below is a full set of configuration options for the Sick Muse server. These opt
 are configured on the command line via ``sickmuse --<name>=<value>``.
 
 
+debug
+---------------------------------------------
+
+Default: ``False``
+
+Turns the server into debug mode. In this mode the static resouces will use the
+non-compressed version and the Python code changes will auto reload. This setting
+is used for local development and should not be used in production.
+
+
 port
 ---------------------------------------------
 
@@ -13,14 +23,40 @@ Default: ``8282``
 The port on which the server runs.
 
 
-debug
+prefix
 ---------------------------------------------
 
-Default: ``False``
+Default: ``""`` (Empty String)
 
-Turns the server into debug mode. In this mode the static resouces will use the
-non-compressed version and the Python code changes will auto reload. This setting
-is used for local development and should not be used in production.
+The ``prefix`` argument can be used to run the server on under a url prefix. For instance
+if you wanted to run the server under ``sickmuse`` you could start the server with::
+
+    sickmuse --prefix=sickmuse
+
+and then proxy the server with Nginx
+
+.. code-block:: guess
+
+    upstream sickmuse {
+        server 127.0.0.1:8282;
+    }
+
+    server {
+        listen 80;
+        server_name example.com;
+
+        location /sickmuse/ {
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header Host $http_host;
+            proxy_redirect off;
+            proxy_buffering on;
+            proxy_intercept_errors on;
+            proxy_pass http://sickmuse;
+        }
+    }
+
+You could then see the server running at http://example.com/sickmuse/.
 
 
 rrd_directory