Create new commands /now and /left

[Hang-Petrov]

Your task is to create new commands for bot. We need "/now" and "/left"

/now

This command will show which lesson is going on. The bot should display the time period when the lesson is going on, as well as the name of the subject, which will contain a hyperlink leading to the conference or what is indicated in the schedule. You also need to add a timer. This timer will show how much time is left until the end

/left

This command will show the timer, that will show how much time is left until the end of the lesson

GL

[Hang-Petrov]

Remember that user can use these commands in DM and in group's chat