* Update docs and configuration template

config.template.yml

@@ -16,7 +16,7 @@ server:
   read_buffer_size: 4096
   # Write buffer size configures the http server's maximum outgoing response size in bytes.
   write_buffer_size: 4096
-  # Set the path Authelia listens on. Most users will keep this set as a blank string. Must only be alphanumeric chars.
+  # Set the path Authelia listens on, must be alphanumeric chars.
   path: ""
 
 # Level of verbosity for logs: info, debug, trace

docs/configuration/server.md

@@ -20,10 +20,28 @@ server:
   read_buffer_size: 4096
   # Write buffer size configures the http server's maximum outgoing response size in bytes.
   write_buffer_size: 4096
+  # Set the path Authelia listens on, must be alphanumeric chars.
+  path: ""
 ```
 
 ### Buffer Sizes
 
 The read and write buffer sizes generally should be the same. This is because when Authelia verifies 
 if the user is authorized to visit a URL, it also sends back nearly the same size response 
 (write_buffer_size) as the request (read_buffer_size).
+
+### Path
+
+Authelia by default is served from the root `/` location, either via its own domain or subdomain.
+Example: https://auth.example.com, https://example.com
+```yaml
+server:
+  path: ""
+```
+
+Modifying this setting will allow you to serve Authelia out from a specified base path.
+Example: https://auth.example.com/authelia, https://example.com/authelia
+```yaml
+server:
+  path: authelia
+```