Updated the R10 regions to be consistent with the IPCC AR6 WGII Annex II R10 regions (https://www.ipcc.ch/report/ar6/wg3/downloads/report/IPCC_AR6_WGIII_Annex-II.pdf).
There are some small nations which were already in the common-definitions R20 regions but were not included in any of the IPCC R10 regions (e.g. Taiwan, Hong Kong), which I left in.
Also updated spelling of Czechia at R10 level.
Added Albania to Europe R10 (already in R5 and R9 levels)
Updated the R10 regions to be consistent with the IPCC AR6 WGII Annex II R10 regions (https://www.ipcc.ch/report/ar6/wg3/downloads/report/IPCC_AR6_WGIII_Annex-II.pdf). There are some small nations which were already in the common-definitions R20 regions but were not included in any of the IPCC R10 regions (e.g. Taiwan, Hong Kong), which I left in.
Also updated spelling of Czechia at R10 level. Added Albania to Europe R10 (already in R5 and R9 levels)