Add some clarity to the config options

README.md

@@ -114,7 +114,9 @@ For a good example, see https://riot.im/develop/config.json.
    with added support for a `server_name` under the `m.homeserver` section to display
    a custom homeserver name. Alternatively, the config can contain a `default_server_name`
    instead which is where Riot will go to get that same object - see the `.well-known`
-   link above for more information.
+   link above for more information. Note that the `default_server_name` is used to get
+   a complete server configuration whereas the `server_name` in the `default_server_config`
+   is for display purposes only.
    * *Note*: The URLs can also be individually specified as `default_hs_url` and 
      `default_is_url`, however these are deprecated. They are maintained for backwards
      compatibility with older configurations. `default_is_url` is respected only

src/vector/index.js

@@ -500,7 +500,7 @@ async function verifyServerConfig() {
 
     // Add the newly built config to the actual config for use by the app
     console.log("Updating SdkConfig with validated discovery information");
-    SdkConfig.add({"validated_discovery_config": validatedConfig});
+    SdkConfig.add({"validated_server_config": validatedConfig});
 
     return SdkConfig.get();
 }