2 dose reporting updates

[lucasrodes]

Some countries started second dose administration. This implies adding new columns people_vaccinated and people_fully_vaccinated

Current 2-dose reportings

• [x] Argentina
• [x] Austria
• [x] Belgium
• [ ] Brazil
• [ ] Bulgaria
• [x] Canada
• [x] Chile
• [x] Czechia
• [x] Denmark
• [x] France
• [X] Germany
• [x] Italy
• [ ] Liechtenstein
• [x] Norway
• [x] Poland
• [x] Slovakia
• [x] Spain
• [ ] Sweden
• [ ] Switzerland
• [X] United Kingdom
• [X] United States

[lucasrodes]

This is now reported in the README file in an automated manner