v3.0.0-rc.20

WHILE WE'VE TRIED TO MAINTAIN BACKWARDS COMPATIBILITY WE RECOMMEND YOU READ THE BELOW IF YOU ARE UPDATING FROM PRE RC2

1. CHECK OUT THE BIG CHANGES IN RC.2!
2. USE THIS GUIDE TO UPDATE YOUR LANDOFILES

ALSO, STILL, SERIOUSLY, READ THE DOCS!: https://docs.devwithlando.io/

• Added marketing site #1410
• Added ability to sponsor lando
• Added support for patch versions of elasticsearch 7.3 #1729
• Fixed mysql failing on linux on restart #1739
• Updated to Docker Desktop 2.1.0.1 #1728
• Updated to composer 1.9.0 for php 7.1+
• Updated documentation site #1410