go to the Linux terminal and enter the command:

curl -X POST "https://api.telegram.org/botBOT_TOKEN/setMyDescription" -d "description="

if your token is 12345:slslwoks;lskdfowksaf

then the team will be:

curl -X POST "https://api.telegram.org/bot12345:slslwoks;lskdfowksaf/setMyDescription" -d "description="