fix: fix server-proxy-uri config (#35)

admin.rst

@@ -37,7 +37,7 @@ db-anon-role      String           Y
 db-pool           Int     10
 server-host       String  \*4
 server-port       Int     3000
-server-proxy-url  String
+server-proxy-uri  String
 jwt-secret        String
 secret-is-base64  Bool    False
 max-rows          Int     ∞
@@ -56,8 +56,25 @@ server-host
   Where to bind the PostgREST web server.
 server-port
   The port to bind the web server.
-server-proxy-url
+server-proxy-uri
-  Overrides the base URL used within the OpenAPI self-documentation hosted at the API root path.
+  Overrides the base URL used within the OpenAPI self-documentation hosted at the API root path. Use a complete URI syntax :code:`scheme:[//[user:password@]host[:port]][/]path[?query][#fragment]`. Ex. :code:`https://postgrest.com`
+
+.. code:: json
+
+  {
+    "swagger": "2.0",
+    "info": {
+      "version": "0.4.0.0",
+      "title": "PostgREST API",
+      "description": "This is a dynamic API generated by PostgREST"
+    },
+    "host": "postgrest.com:443",
+    "basePath": "/",
+    "schemes": [
+      "https"
+    ]
+  }
+
 jwt-secret
   The secret used to decode JWT tokens clients provide for authentication. If this parameter is not specified then PostgREST refuses authentication requests. Choosing a value for this parameter beginning with the at sign such as :code:`@filename` loads the secret out of an external file. This is useful for automating deployments. Note that any binary secrets must be base64 encoded.
 secret-is-base64