Banner img added

[a-chappelear]

Pull request summary

Banner img

(Optional) Closes #(issue_number).

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

[nateborr]

I suggested a fix for the image config, and this branch also needs to have a merge conflict manually resolved on the command line. I can do that quickly if you don't have a local environment set up.

[nateborr]

I rebased this branch onto the latest version of main to resolve a merge conflict from the renaming of the content/posts/2024-07-17-working-with-oracle-databases-in-open-source-projects.md file, and the updated post is rendering correctly.