Parsia-Code

Fetch all public source repos from github.com/parsiya, filter out forks and non-code repos, and create update.md. Use when: updating repo catalog, fetching new repos, generating update.md, /pull.

Read update.md and add each item to README.md under the correct section, run git submodule add, then verify. Use when: adding repos to README, running submodule adds, /push.