Acceptable-Casks.md: improve readability
Acceptable-Casks.md: improve readability

Move definitions next to their terms, so the reader immediately understands the terms used.

Also grammar fixes in the second half.
nandub/brew,claui/brew,EricFromCanada/brew,nandub/brew,JCount/brew,Homebrew/brew,JCount/brew,MikeMcQuaid/brew,EricFromCanada/brew,nandub/brew,MikeMcQuaid/brew,JCount/brew,Homebrew/brew,MikeMcQuaid/brew,MikeMcQuaid/brew,claui/brew,EricFromCanada/brew,Homebrew/brew,EricFromCanada/brew,claui/brew,Homebrew/brew,nandub/brew,JCount/brew,claui/brew