docs: Update login instructions for Azure CLI in QuotaCheck.md

Author: Harsh-Microsoft

docs/QuotaCheck.md

@@ -7,7 +7,11 @@ Before deploying the accelerator, **ensure sufficient quota availability** for t
 ### Login if you have not done so already
 
 ```
-azd auth login
+az login
+```
+If using VS Code Web:
+```
+az login --use-device-code
 ```
 
 ### 📌 Default Models & Capacities:
@@ -95,7 +99,7 @@ The final table lists regions with available quota. You can select any of these
 ### **If using VS Code or Codespaces**
 
 1. Open the terminal in VS Code or Codespaces.
-2. If you're using VS Code, click the dropdown on the right side of the terminal window, and select `Git Bash`.
+2. If you're using VS Code, click the dropdown on the right side of the terminal window, and select `Git Bash` / `bash`.
    ![git_bash](images/readme/terminal_git_bash.png)
 3. Navigate to the `scripts` folder where the script files are located and make the script as executable:
    ```sh
@@ -118,5 +122,6 @@ The final table lists regions with available quota. You can select any of these
    curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash
    az login
    ```
+   > Note: Use `az login --use-device-code` in VS Code Web.
 
 6. Rerun the script after installing Azure CLI.