You need to evaluate the lisp at the bottom of the file, so that `M-x new-day`, `M-x today` and the other stuff gets loaded.
I've got a bit of code in my init-files that does that automatically, that's linked to in the readme. But as a quick alternative you can scroll down to the end, to the line that starts:
"(defun new-day"
Select that line, and all the way down to the line that reads "(require 'ob-org)", and then run "M-x eval-region". That will evaluate the region and make the two new commands available.
Otherwise copy and paste the lisp from here into your emacs init file, and reload everything:
That will cause anything named `skx-startblock` to be evaluated automatically from an org-file on-load, and will also run the contents of `skx-saveblock` before saving any org-file, if present.
