docs(readme): update repository to github

Fix #11
1 job for 14-add-french-gauging-station-daily-data in 58 seconds (queued for 8 seconds)
Status Name Job ID Coverage
  Check
failed check #221377
docker

00:00:58

 
Name Stage Failure
failed
check Check

❯ checking dependencies in R code ... NOTE
Namespace in Imports field not imported from: ‘config’
All declared Imports should be used.

1 error ✖ | 0 warnings ✔ | 2 notes ✖
Error: R CMD check found ERRORs
Execution halted
Cleaning up file based variables
ERROR: Job failed: exit code 1