* Add one APL book
And fix links and notes the some others
* Add APL cheat sheets
* APL courses
* French APL video series
* mark APL Course as in process, add one more course
* mark as in process
* ADSP and Array Cast
* Add APL
* Add APL-related entries
* Add number for sort ordering
* correct number of blank lines between last section and next heading
* Remove trailing slash
* Move book
* Move book and limit URLs to 1 per line
* full URL
* add missing line
* Combine into playlist
* replace multiple links with single link
… which is a redirect to the listing for the latest released version
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