Declare OS compatibility.

Author: Ace-Who

README.md

@@ -2,6 +2,8 @@
 
 Change font size easily.
 
+Currently only works on Windows and Mac OS X (not tested).
+
 ## Usage
 
 1. Run `:Fontsize` to enter the state of changing font size.

autoload/fontsize.vim

@@ -77,7 +77,7 @@ function! fontsize#Change()
       for size in l:sizes
         let size = str2float(size) + l:increment
         " Must keep the data type of l:sizes' items as string so that
-        " str2float can be used without fault.
+        " str2float won't encount a type error.
         let l:sizes[i] = string(size)
         let g:fontsizes[i] = l:dimens[i] . l:sizes[i]
         let l:fontlist[i] = l:names[i] . ':' . g:fontsizes[i]