Custom content type h5p in drupal 8

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Please share documentation regarding how can I "create custom" content type in "Drupal 8"

I found articile but in drupal 7:
https://h5p.org/development-environment

papi Jo's picture

"how can I "create custom" content type in "Drupal 8""

Short answer: you can't. You'll have to use Drupal 7.