updated README

Author: radovskyb

cmd/watcher/README.md

@@ -14,6 +14,8 @@ Usage of watcher:
     	command to run when an event occurs
   -dotfiles
     	watch dot files (default true)
+  -ignore string
+        comma separated list of paths to ignore
   -interval string
     	watcher poll interval (default "100ms")
   -keepalive