[7.2] [DOCS] Add ILM tutorial (#59502)#63426

Merged

mellieA merged 2 commits intoelastic:7.2from mellieA:backport/7.2/pr-59502

Apr 15, 2020

+171-15

Commits on Apr 13, 2020

[DOCS] Add ILM tutorial (elastic#59502 )

Melori Arellano
and
jrodewig
committed

Commits on Apr 14, 2020

Update ILM overview link for 7.2
Melori Arellano
authored