* two overhead cam projects, one for webcam and one for 32x32 cam module
* minor fix
* fix for @pkooij comment
(i can't actually see his comment, but from where
pkooij's link goes to i figure it has to do with making sure
the "Optional Hardware" section is collapsed by default in README, so made that change)
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Co-authored-by: Philip Fung <no@one>