Create a title for telegram messages

[TotallyInformation]

You can do this by indicating to Telegram that it should use markdown enhanced messages. The markup is very limited but you can do bold, italic and fixed-width font.

Telegram Bot API

On my generic Telegram output flow, I use a simple JSONata change node to change the payload before sending:

{ 
    "chatId": chatId,
    "content": "*" & $replace(topic, "_", " ") & "*\n" & $join($split(payload, "<br>"), "\n"),
    "type": contentType,
    "options": { 
        "parse_mode": "Markdown"
    }
}