Update README.md

README.md

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-# YouTube Community Contributed Captions Exporter
-Export YouTube community-contributed captioning drafts to SBV files.
+# YouTube Community Contributions Archiving Worker
+Export YouTube community-contributed captioning drafts to SBV files. Export YouTube community-contributed titles and descriptions to JSON (coming soon).
 
 ## Setup
 Install the requirements in the requirements.txt file (`pip install -r requirements.txt`). Because the captioning editor is only available to logged-in users, you must specify the values of three session cookies for any Google account (`HSID`, `SSID`, and `SID`). You can get these cookie values by opening the developer tools on any youtube.com webpage, going to the "Application" (Chrome) or "Storage" (Firefox) tab, selecting "Cookies", and copying the required values.
 
 ## Usage
-Simply run `python3 ytcc-exporter.py` followed by a list of space-separated YouTube video IDs, and all community-contributed captioning drafts in all languages will be exported.
+### Export Captions
+Simply run `python3 ytcc-exporter.py` followed by a list of space-separated YouTube video IDs, and all community-contributed captioning drafts in all languages will be exported.
+
+### Discover videos
+Simply run `python3 discovery.py` followed by a list of space-separated YouTube video IDs and a list of discovered video, channel and playlist IDs will be printed, as well as whether caption contributions are enabled.