update readmes

HelloBot/README.md

@@ -1,6 +1,36 @@
 # HelloBot
 
-The main purpose of this bot is just to answer "Oh, hi, " and add user mention here
+A minimal bot that responds whenever someone mentions the bot's username in a chat.
+
+## Functionality
+
+Listens for any message that contains the bot's username mention. When triggered, replies with
+`Oh, hi, ` followed by a mention of the sender (or the group/channel name for non-private chats).
+Uses MarkdownV2 formatting and adapts the reply text based on the chat type.
+
+## Arguments
+
+| Position | Value | Description |
+|----------|-------|-------------|
+| 1 | `BOT_TOKEN` | Telegram bot token |
+
+Optional arguments (any order after the token):
+
+| Value | Description |
+|-------|-------------|
+| `debug` | Enable verbose debug logging |
+| `testServer` | Connect to the Telegram test server instead of production |
+
+## Bot Commands
+
+None. The bot is triggered by username mentions, not commands.
+
+## Capabilities
+
+- Detects mentions of the bot username in all chat types (private, group, supergroup, channel, business)
+- Builds a MarkdownV2-formatted reply that links back to the sender
+- For public chats the reply contains a clickable mention link; for private chats it uses a text mention
+- Runs via long polling
 
 ## Launch