doc: add documentation to some url params

config.js

     // the menu has option to flip the locally seen video for local presentations
     // disableLocalVideoFlip: false,
 
+    // Mainly privacy related settings
+
+    // Disables all invite functions from the app (share, invite, dial out...etc)
+    // disableInviteFunctions: true,
+
+    // Disables storing the room name to the recents list
+    // doNotStoreRoom: true,
+
     // Deployment specific URLs.
     // deploymentUrls: {
     //    // If specified a 'Help' button will be displayed in the overflow menu with a link to the specified URL for

doc/api.md

 const api = new JitsiMeetExternalAPI(domain, options);
  ```
 
-You can set the userInfo(email) for the call:
+You can set the userInfo(email, display name) for the call:
 
 ```javascript
 var domain = "meet.jit.si";
 var options = {
     ...
     userInfo: {
-        email: 'email@jitsiexamplemail.com'
+        email: 'email@jitsiexamplemail.com',
+        displayName: 'John Doe'
     }
 }
 var api = new JitsiMeetExternalAPI(domain, options);