Deletion of Luanda International School

Comment: I've added text and secondary sources and updated the U.S. Government public domain content to the 2019-2020 fact sheet. Since the fact sheet is provided under the imprimatur the U.S. Government, I believe it is also a secondary source. Thus, the school meets .  Cheers
Stance: keep
Cited policy: Wikipedia:Notability (WP:GNG)

Comment: per  thanks to Grand'mere Eugene's sources and improvement
Stance: keep
Cited policy: Wikipedia:The Heymann Standard (WP:HEY)