Adds GitHub Actions

[kenorb]

Fixes #177.

[github-actions[bot]]

sh-checker report

shellcheck output

``` No errors or shellcheck is disabled ```

The files above have some shellcheck issues

shfmt output

``` No errors or shfmt is disabled ```

The files above have some formatting problems, you can use shfmt -w to fix them

[github-actions[bot]]

sh-checker report

shellcheck output

``` No errors or shellcheck is disabled ```

The files above have some shellcheck issues

shfmt output

``` No errors or shfmt is disabled ```

The files above have some formatting problems, you can use shfmt -w to fix them