Better Caption Checking, Experimental Clipping

What's Changed

• Update CONTRIBUTING.md by @whargrove in #207
• feature/add-download-and-upload-for-clips by @evamaxfield in #208
• feature/basic-gcp-function-and-clipping-gcp-function by @evamaxfield in #204
• docs/update-docstring-for-clip-and-format by @rajataggarwal91 in #209
• feature/filter-out-invalid-captions by @dphoria in #214

New Contributors

• @whargrove made their first contribution in #207
• @rajataggarwal91 made their first contribution in #209

Full Changelog: v3.2.3...v3.2.4