Added a note about merging YAML and UI variables.
Added a note about merging YAML and UI variables.

Shredder121/website,saper/appveyor-website,appveyor/website,gep13/website-1,gep13/website-1,howitzer-industries/website,saper/appveyor-website,Shredder121/website,gep13/website-1,howitzer-industries/website,appveyor/website,appveyor/website,Shredder121/website,howitzer-industries/website,saper/appveyor-website