Add better cygwin support

.gitattributes

@@ -0,0 +1,2 @@
+# Force text files to have unix eols, so Windows/Cygwin does not break them
+*.* eol=lf

README.md

@@ -4,6 +4,8 @@ A set of tmux options that should be acceptable to everyone.
 
 Inspired by [vim-sensible](https://github.com/tpope/vim-sensible).
 
+Tested and working on Linux, OSX and Cygwin.
+
 ### Principles
 
 - `tmux-sensible` options should be acceptable to **every** tmux user!<br/>