Added github-handle for Thad Kerosky in civic-tech-structure.md

[patelbansi3009]

Fixes #6762

What changes did you make?

• Added github-handle for Thad Kerosky in civic-tech-structure.md.

Why did you make the changes (we will use this info to test)?

• To Reduce redundancy in the project data.

Screenshots of Proposed Changes Of The Website (if any, please do not screen shot code changes)

• Adding a line of code. No visual changes to the website.

[github-actions[bot]]

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From your project repository, check out a new branch and test the changes.

git checkout -b patelbansi3009-add-github-handle-thad-kerosky-6762 gh-pages
git pull https://github.com/patelbansi3009/website.git add-github-handle-thad-kerosky-6762

[jenjenkayi]

Availability: 3-5PM 5/3/24 Review ETA: 5PM 5/3/24

[Thinking-Panda]

Availability: Weekdays Review ETA: 5/7/24