Added note about auto-reload and Windows

README.md

@@ -61,7 +61,7 @@ Features and limitations
 * Will not run without a Redis server to connect to.
 * The HTML title for a rendered Markdown page can be provided by the first line specifying the title, like this: `title: Title goes here`. This is a subset of MultiMarkdown.
 * No processes that listens for changes to files needs to be running in the background. Files are converted on the fly.
-* If `-autorefresh` is enabled, the browser will automatically refresh pages when the source files are changed. Works for Markdown, Lua error pages and Amber (including GCSS and *data.lua*).
+* If `-autorefresh` is enabled, the browser will automatically refresh pages when the source files are changed. Works for Markdown, Lua error pages and Amber (including GCSS and *data.lua*). This only works on Linux and OS X, for now.
 
 
 The pillars of Algernon