Revise ServiceNow Developer Instance setup instructions

Zurich release warning

Author: aldro61

README.md

@@ -47,14 +47,15 @@ To setup WorkArena, you will need to get your own ServiceNow instance, install o
 
 1. Go to https://developer.servicenow.com/ and create an account.
 2. Click on `Request an instance` and select the `Washington` release (initializing the instance will take a few minutes)
-3. Once the instance is ready, you should see your instance URL and credentials. If not, click _Return to the Developer Portal_, then navigate to _Manage instance password_ and click _Reset instance password_.
-4. Change the role of the user to admin in yoyr instance parameters ![image](https://github.com/user-attachments/assets/6f0fbf8e-f40f-411a-84cb-fead93d85f60)
+   * **Important note:** ServiceNow will soon release the Zurich version, which will reduce the availability of Washington instances. If you run into an issue where none are available or you cannot select such an instance, please contact [email protected].
+4. Once the instance is ready, you should see your instance URL and credentials. If not, click _Return to the Developer Portal_, then navigate to _Manage instance password_ and click _Reset instance password_.
+5. Change the role of the user to admin in yoyr instance parameters ![image](https://github.com/user-attachments/assets/6f0fbf8e-f40f-411a-84cb-fead93d85f60)
 
-5. You should now see your URL and credentials. Based on this information, set the following environment variables:
+6. You should now see your URL and credentials. Based on this information, set the following environment variables:
     * `SNOW_INSTANCE_URL`: The URL of your ServiceNow developer instance
     * `SNOW_INSTANCE_UNAME`: The username, should be "admin"
     * `SNOW_INSTANCE_PWD`: The password, make sure you place the value in quotes "" and be mindful of [escaping special shell characters](https://onlinelinuxtools.com/escape-shell-characters). Running `echo $SNOW_INSTANCE_PWD` should print the correct password.
-6. Log into your instance via a browser using the admin credentials. Close any popup that appears on the main screen (e.g., agreeing to analytics).
+7. Log into your instance via a browser using the admin credentials. Close any popup that appears on the main screen (e.g., agreeing to analytics).
 
 **Warning:** Feel free to look around the platform, but please make sure you revert any changes (e.g., changes to list views, pinning some menus, etc.) as these changes will be persistent and affect the benchmarking process.