add page with guide#2

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yuliia-vyl wants to merge 5 commits into

yuliia-vyl:masterfrom

Commits on Apr 25, 2019

Upgrading HAProxy Load Balancer for ThingsBoard PE from AWS Marketplace
ikulikov
committed

Commits on Apr 26, 2019

ThingsBoard certbot instructions for AWS Marketplace
ashvayka
committed

Commits on May 2, 2019

Minor typo fix (#201)
mp-loki
authored

Commits on May 7, 2019

added text-release on smart city page and uploaded 2 images (#202)

AlexDoanTB
authored and
mp-loki
committed

Commits on May 27, 2019

Update installation instructions to use OpenJDK instead of Oracle JDK
ikulikov
committed