* Added a script for Strings extraction, and a reference to it on `setup.praat`

* Squashed some last remaining bugs in the new variants of `view_each`.

* Expanded `readme.md` with information on how to include procedures from other
  scripts, as well as a heads-up on the hook mechanism.

* [Minor] Changed default regex in `view_each.from_disk.praat`, which now makes
  more sense.