You should create folder configs and file credentials.py inside it.
token = "your token of bot here"
source env/bin/activate
pip3 install -r requirments.txt
python3 bot.py
In BotFather you should use /setcommands
for your bot and add description to /getlist
command.
When you add your bot to a chat, you can restrict it in Embedding links (in admin settings) so that it would not preview links