Merge pull request #48 from GreenAlgorithms/dev_1

v3.0 update: AI view, csv import-export, more help, some new data...

Cleaned up behaviour of usage and PS

Added CPUs "AMD EPYC 7343" and "AMD EPYC 7513": #1 (comment)

Update README.md

Lowered urllib3 to not clash with requests

Updated data for v2.0

v1.1

Updated carbon intensities with 2020 values.
Minor edits.

Minor update