Update browser extension README to improve documentation clarity and phrasing

- assess grammar: [Fragment]

Author: robertpiosik

apps/browser/README.md

@@ -2,21 +2,21 @@
 
 The browser extension communicates with the editor via a locally run WebSockets server.
 
-It serves two purposes:
+Serves two purposes:
 
 1. Autofilling the constructed prompt text
 
-2. Placing Apply Response button under responses
+2. Placing _Apply Response_ button under responses
 
 > [!NOTE]
-> The Apply Response button is an alias for the commonly present response copying feature with an additional hint for the editor to process the clipboard text.
+> The _Apply Response_ button is an alias for the copy button typically placed at the end of a chat response. Once clicked, it copies the response and notifies the editor via a WebSocket message to read the clipboard.
 
 > [!IMPORTANT]
 > Prompt text is never submitted or response accepted automatically.
 
 ## Permissions
 
-The extension requires minimal permissions.
+The extension functions with minimal permissions.
 
 - `storage` - Used to temporarily store prompts for [a content script](https://github.com/robertpiosik/CodeWebChat/tree/dev/apps/browser/src/content-scripts/send-prompt-content-script), and to save extension settings.
 - `alarms` (Chrome only) - Used to implement a keep-alive mechanism for the background service worker to ensure the WebSocket connection stays active.