[BIGTOP-3431] Update github Readme.md to be more newbie friendly

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.0
• Fix Version/s: 1.5.0
• Component/s: website
• Assignee: Matt Andruff
• Reporter: Matt Andruff
• Created: 02/Oct/20 16:15
• Updated: 06/Oct/20 19:19
• Resolved: 06/Oct/20 19:19

Description

I want to add some context to the git section of the readme.  All stuff that you know once you have worked in the project for a while but isn't explicitly called out and might make it easier for others to get started.