[Doc][Getting Started] Addition of Recommended configs for MySQL #693
Description
Documentation Scope
https://devlake.apache.org/docs/GettingStarted
Describe the Change
Several DevLake users have repetitive asked for configurations for MySQL, AWS etc.
Screenshots
[Update] : Adding in helm doc: Adding in helm doc: https://devlake.apache.org/docs/GettingStarted/HelmSetup/