rosannaclairebarnard/covidm-mtd-Omi: Second release associated with peer-reviewed paper & associated blog post

Second release associated with:

• Barnard et al., 'Modelling the medium-term dynamics of SARS-CoV-2 transmission in England in the Omicron era', Nature Communications (2022), available at: https://www.nature.com/articles/s41467-022-32404-y
• 'Behind the Paper' blog post about the above paper, available at: https://healthcommunity.nature.com/posts/modelling-the-key-factors-influencing-sars-cov-2-transmission

@rosannaclairebarnard @nicholasdavies

Full Changelog: https://github.com/rosannaclairebarnard/covidm-mtd-Omi/compare/v1.0.0...v2.0.0