Improve welcome message on Telegram - @TorProjectSupportBot
At the moment when a user start chatting with us on telegram (@TorProjectSupportBot), they receive this message
"Hi! This is the Tor Project Support Channel. If you need bridges, send /bridges to our bot @GetBridgesBot. If you need help from a support person, ask a question in chat. Привет! Это поддержка проекта Tor. Если вам нужны мосты - отправьте /bridges нашему боту @GetBridgesBot. Если вам нужна помочь сотрудника поддержки – задайте вопрос в чате."
And the support agents are getting some "/bridges", which is not helpful. We should improve this description so users can provide more valuable information to the help desk.
(cc: @nina @championquizzer)