Update README.md

Author: intitni

README.md

@@ -82,10 +82,11 @@ If you are using macOS Monterey, enter the `Extensions` menu in `System Preferen
 ### Setting Up GitHub Copilot
 
 1. In the host app, switch to the service tab and click on GitHub Copilot to access your GitHub Copilot account settings.
-2. Optionally setup the path to Node. The default value is just `node`, Copilot for Xcode.app will try to find the Node from the PATH available in a login shell. If your Node is installed somewhere else, you can run `which node` from terminal to get the path. 
-3. Click "Sign In", and you will be directed to a verification website provided by GitHub, and a user code will be pasted into your clipboard.
-4. After signing in, go back to the app and click "Confirm Sign-in" to finish.
-5. Go to "Feature - Suggestion" and update the feature provider to "GitHub Copilot".
+2. Click "Install" to install the language server.
+3. Optionally setup the path to Node. The default value is just `node`, Copilot for Xcode.app will try to find the Node from the PATH available in a login shell. If your Node is installed somewhere else, you can run `which node` from terminal to get the path. 
+4. Click "Sign In", and you will be directed to a verification website provided by GitHub, and a user code will be pasted into your clipboard.
+5. After signing in, go back to the app and click "Confirm Sign-in" to finish.
+6. Go to "Feature - Suggestion" and update the feature provider to "GitHub Copilot".
 
 The installed language server is located at `~/Library/Application Support/com.intii.CopilotForXcode/GitHub Copilot/executable/`.
 
@@ -188,6 +189,12 @@ You can detach the chat panel by simply dragging it away. Once detached, the cha
 | `⌘M` | Minimize the chat, you can bring it back with any chat commands or by clicking the circular widget. |
 | `⇧↩︎` | Add new line. |
 
+#### Chat Scope
+
+The chat panel allows for chat scope to temporarily control the context of the conversation for the latest message. To use a scope, simply prefix the message with `@scope`.
+
+Currently, the only supported scope is `@file`, which will import the content of the file into the system prompt.
+
 #### Chat Plugins
 
 The chat panel supports chat plugins that may not require an OpenAI API key. For example, if you need to use the `/run` plugin, you just type 
@@ -207,7 +214,16 @@ If you need to end a plugin, you can just type
 
 ### Prompt to Code
 
-Refactor selected code or write new code using natural language.
+Refactor existing code or write new code using natural language.
+
+This feature is recommended when you need to update a specific piece of code. Some example use cases include:
+- Improving the code's readability.
+- Correcting bugs in the code.
+- Adding documentation to the code.
+- Breaking a large function into smaller functions.
+- Generating code with a specific template through custom commands.
+- Polishing and correcting grammar and spelling errors in the documentation.
+- Translating a localizable strings file.
 
 #### Commands