Added /countryinfo [country] command to your bot

[aakashgarg-19]

Added /countryinfo [country] command to your bot

Issue: #84

• [x] Added command to README.md commands list
• [x] Code is tested before submitting
• [x] Code is formatted with prettier (npm run format)
• [x] Deleted all console.log() or console.error() statements
• [x] Correct error handling => No 'The application did not respond' errors

Screen-Shot

[aakashgarg-19]

@thieleju Please review my PR