[7.x] [DOCS] Reformat flush API docs (#46875)#47230

Merged

jrodewig merged 1 commit intoelastic:7.xfrom jrodewig:backport/7.x/pr-46875

Sep 30, 2019

+107-37

Commits on Sep 27, 2019

[DOCS] Reformat flush API docs (#46875 )
jrodewig
committed