Have a question or suggestion regarding a specific ProtoSchool lesson? Please use this template to share it! **URL of the lesson that's confusing:** https://proto.school/verifying-storage-on-filecoin/02 **What's confusing about this lesson?** Broken link: [sector sizes and storing large files](https://docs.filecoin.io/how-to/store/prepare-data/#for-files-bigger-than-a-sector) **What additional context could we provide to help you succeed?** **What other feedback would you like to share about ProtoSchool?**