deleted section of 4 (#17)

* Merge main to vercel_deploy (#14) (#16)

* Update part4-product-spec-learning-phase.md

* updated readme

* Update README.md

* Update part4-product-spec-learning-phase.md

Added Technical Design Doc Template for levels 2 & 3 teams, and updated descriptions for each. Changed the title to better fit the new templates.

* Update part4-product-spec-learning-phase.md (#13)

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Co-authored-by: Elijah Melton <[email protected]>
Co-authored-by: Elijah Melton <[email protected]>

* Update part4-product-spec-learning-phase.md

delete section

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Co-authored-by: Elijah Melton <[email protected]>
Co-authored-by: Elijah Melton <[email protected]>