Updated Adding a New Unit (markdown)
"Time" was incorrectly labeled "Temperature" in the list of SI units.
Clarification about codegen, remove powershell info, improve intro text
Clarify baseunits and baseunit
Try to clarify a bit about BaseUnits and BaseUnit
Update dependencies list
Fix links
Add info about irrational factors, cleanup styling
Update requirements
Add Visual Studio 2017 as requirement
Changed GenerateUnits.bat to generate-code.bat
Details on how to write conversion functions
Fix link