Create a short changelog between two tags

changelog.sh

git shortlog -e --format="%h %s" <last_tag>..HEAD | git tag -s <new_tag> -F -


```
First Name <email@example.com> (5):
      f2b7c5c Add support for multiple environments (#3)
      ac202d9 Configure read_only mode (#5)
      024d580 Convert `read_only_dashboard` to string (#6)
      dcfa003 Add monitors submodule (#7)
      fa92fc2 Fix metrics' properties (#8)
```