docs: Update deployment guide and quota check documentation for VS Code Web usage

Author: Avijit-Microsoft

docs/DeploymentGuide.md

@@ -126,9 +126,18 @@ Select one of the following options to deploy the Container Migration Solution A
 2. Sign in with your Azure account when prompted
 3. Select the subscription where you want to deploy the solution
 4. Wait for the environment to initialize (includes all deployment tools)
-5. When prompted in the VS Code Web terminal, choose one of the available options shown below:
-
-   ![VS Code Initial Prompt](./images/vscodeweb_intialize.png)
+5. Once the solution opens, the **AI Foundry terminal** will automatically start running the following command to install the required dependencies:
+
+    ```shell
+    sh install.sh
+    ```
+    During this process, you’ll be prompted with the message:
+    ```
+    What would you like to do with these files?
+    - Overwrite with versions from template
+    - Keep my existing files unchanged
+    ```
+    Choose “**Overwrite with versions from template**” and provide a unique environment name when prompted.
 6. Proceed to [Step 3: Configure Deployment Settings](#step-3-configure-deployment-settings)
 
 </details>

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.