message: Change documented default TERM to alacritty
diff: # each instance of Alacritty. If it is not present, alacritty will
  # check the local terminfo database and use `alacritty` if it is
  # available, otherwise `xterm-256color` is used.
  - #TERM: xterm-256color
  + #TERM: alacritty
  #window:
  # Window dimensions (changes require restart)
  