[7.x] [DOCS] Adds geocentroid note to coordinate map (#54389)#55098

Merged

KOTungseth merged 1 commit intoelastic:7.xfrom KOTungseth:backport/7.x/pr-54389

Jan 16, 2020

+48-81

Commits on Jan 16, 2020

[DOCS] Adds geocentroid note to coordinate map (elastic#54389 )
KOTungseth
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