Merge pull request #55 from badsmoke/master

add save metrics as file

Merge pull request #52 from sachasmart/master

Small update to help those using python 3.9

Update changelog

Create changelog

Handle smartctl exit code != 0 and add smartprom_exit_code metric

Update Grafana Dashboard and Readme (#41)

Parse some raw values of sat metrics (fix previous commit) (#39)

Publish Docker image tags for releases