update with xlaunch info

Author: jrbaxter0

docs/01_wsl2.md

@@ -49,12 +49,7 @@ VcXsrv is the recommended client.
 
 If you install VcXsrv, launch it with the `XLaunch.exe` executable, not VcXsrv.
 When you launch it for the first time, you will see several configuration pages.
-1. Leave the display settings at the default: multiple windows, -1
-2. Leave the client settings at the default: start no clients
-3. Modify the extra settings as follows:
-   - Check "Disable access control". This is safe to do, since we will use
-     Windows Firewall to block the client. This allows your WSL2 and Docker
-     instances to access the client.
+You may leave them all at the default: multiple windows, no clients.
 
 ### Windows Firewall Setup
 When you first launch your X client, you should see Windows Firwall pop up. Go