docs: Consistent newlines between badges

[kevgo]

Proposed changes

Tiny fix to improve readability and make the formatting consistent. No content changes. Doesn't seem to impact formatting: https://github.com/kevgo/kratos/blob/kg-readme-newline/README.md

Checklist

• I have read the contributing guidelines.
• I have read the security policy.
• I confirm that this pull request does not address a security
  vulnerability. If this pull request addresses a security. vulnerability, I
  confirm that I got green light (please contact
  security@ory.sh) from the maintainers to push
  the changes.
• I have added tests that prove my fix is effective or that my feature
  works.
• I have added or changed the documentation.