Revert "test build"

This reverts commit 1598680170aa194d5ae0896e1b53b367d72cd596.
Revert "test update"

This reverts commit 48243439e14837d7e0c829db784faec08b72e0de.
Revert "delete notes, update lab notebook explanation"

This reverts commit ccd9efb36a2281c5f6605cf7cda4ae6cd0d3f305.