[DOCS] Add links to `flattened` datatype#56794

Merged

lockewritesdocs merged 5 commits intoelastic:masterfrom lockewritesdocs:docs__link_flattened_field

May 19, 2020

+57-48

Commits on May 14, 2020

Changes for elastic#52239 .
Adam Locke
committed

Commits on May 15, 2020

Incorporating review feedback from Julie T. Also single-sourcing nexted options in the Mapping page and referencing them in the Nested page.
Adam Locke
committed
Moving tip after the introduction and clarifying limits.
Adam Locke
committed

Commits on May 19, 2020

Update docs/reference/mapping.asciidoc

Adam Locke
and
jrodewig
authored
Update docs/reference/mapping/types/nested.asciidoc

Adam Locke
and
jrodewig
authored