feat: Added pages from med-imagenet to disciplines/Imaging

Hi there @JoshuaSiraj! :wave:

This PR Title does not meet the Conventional Commits specification.

Add a prefix to indicate what kind of release this pull request corresponds to. Common Types:

feat: A new feature | Adding a Page/Section to the Handbook
fix: A bug fix | Fixing a typo in the Handbook
style: Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc)
perf: A code change that improves performance
build: Changes that affect the build system or external dependencies (example: Adding a dependency to Pixi)
ci: Changes to our CI configuration files and scripts (example scopes: Travis, Circle, BrowserStack, SauceLabs)
chore: Other changes that don't modify src or test files

Please Edit the PR Title to prepend the prefix to your PR: [prefix]: Added pages from med-imagenet to disciplines/Imaging

bhklab / handbook