docs: Minor updates

Author: tjtanjin

docs/api/hooks.md

@@ -216,6 +216,7 @@ The `useMessages` hook allows you to track and manage the chatbot's messages.
 | endStreamMessage      | `async function` | Refer [here](/api/params#endstreammessage)             | A utility function used to indicate the end of an existing message stream, identical to `params.endMessageStream`.                                   |
 | removeMessage         | `async function` | Refer [here](/api/params#removemessage)                | A utility function used to remove a message from the chat, identical to `params.removeMessage`.                                                      |
 | messages            | `Array<Message>`     | -        |Array containing all messages currently shown in the chatbot.                  |
+| getMessage.           | `function` | **sender (required)** - The sender of the message. <br/><br/> **numMessages (optional)** - Number of messages to fetch (default: 1). <br/><br/> **offset (optional)** - How many messages to skip backward (default: 0).              | Retrieves the latest message(s) from the specified sender. If numMessages > 1, returns an array of messages. If no message is found, returns null.                                                      |
 | replaceMessages       | `function`  | **newMessagesOrUpdater (required)** - Either: (1) `Message[]` to replace chat with, or (2) a callback `(prevMessages: Message[]) => Message[]` returning the new messages. | Directly replaces the current messages with provided messages, or computes them from the previous state. |
 
 #### Code Example