Correct incorrect spellinng

Author: pixelspring

scss/mediaqueries.scss

@@ -16,7 +16,7 @@ $breakpoints: (
  }
 
  @else {
- @warn "The `#{$breakpoint}` doesent exist in the breakpoints map!. "
+ @warn "The `#{$breakpoint}` breakpoint dosent exist in the breakpoints map! "
  + "Available breakpoints are: #{map-keys($breakpoints)}.";
  }