ostep-typos
To file a textbook bug report, just create an issue. Thank you for your help!
Those issues deemed as valid typos will lead to a credit to you in the book preface. If your name isn't obviously linked to your github account, please add it to the issue, if you wish your name to be included in the book.
(the old way of filing a typo was proving too cumbersome; old updates in those files are kept here).