Fix DevOps for Privacy Offices Blog post images

[igorkorenfeld]

Pull request summary

This PR restores images that were overwritten for an older 18F blog post, placing them in a dedicated folder with named images. Closes #3950

Reminder - please do the following before assigning reviewer

• [ ] Update readme
• [ ] For frontend changes, ensure design review
• [ ] For content changes beyond typos, add Ron Bronson as a reviewer

And make sure that automated checks are ok

• fix houndci feedback
• ensure tests pass
• federalist builds
• no new SNYK vulnerabilities are introduced

[bpdesigns]

@igorkorenfeld anything in the way of merging this?

[igorkorenfeld]

Nothing in the way, merging!