"If there are several ordinary images/videos/GIFs following each other in the source, you may also convert them into a slideshow, but this is purely optional." as the checklist mentioned it is optional to format several ordinary images that follow each other as the slideshow.
more reference in the checklist:
We will not accept issues based on presence or absence of slideshows for ordinary images following each other in the source article.
Log in here to create Instant View templates. Please enter your phone number in the international format and we will send a confirmation message to your account via Telegram.
https://instantview.telegram.org/contest/alwatanvoice.com/template6/issue1/
in the checklist:
https://instantview.telegram.org/checklist#6-2-3-galleries-and-slideshows
"If there are several ordinary images/videos/GIFs following each other in the source, you may also convert them into a slideshow, but this is purely optional." as the checklist mentioned it is optional to format several ordinary images that follow each other as the slideshow.
more reference in the checklist:
We will not accept issues based on presence or absence of slideshows for ordinary images following each other in the source article.