Merge pull request basecamp#12 from robzolkos/update-readme-documenta…

…tion

Update README with complete command documentation

Merge pull request basecamp#8 from robzolkos/fix-account-option-docum…

…entation

Fix misleading --account option documentation

Merge pull request basecamp#9 from robzolkos/clarify-account-slug-format

Clarify account slug format in README

Merge pull request basecamp#7 from robzolkos/fix-direct-upload-accoun…

…t-scoped-path

Fix direct upload to use account-scoped endpoint

Merge pull request basecamp#4 from robzolkos/phase-4-file-uploads

Add Phase 4 file upload functionality

Merge pull request basecamp#3 from robzolkos/phase-3-advanced-commands

Add Phase 3 advanced commands

Update README.md