Add the `NODE_ENV` step to README.

Update bot name and link.

Build README.

Add MIT license file.

Replace /about and /start and fallback responses to an introduction message.

Merge pull request #3 from eludadev/menu-commands

Merge pull request #4 from eludadev/inline-queries

Build a menu section.

Handle inline queries for three text effects.

Merge pull request #1 from eludadev/effect-command

Merge branch 'main' into effect-command

Merge pull request #2 from eludadev/about-command

Change wording in the link in the `/about` command.

Add text effects keyboard and command to bot.

Add the `/about` command.