spelling fix.

README.md

@@ -23,7 +23,7 @@ Usage Instructions
     }
 </pre>
 
-2. Reference the respond.min.js script (1kb min/gzipped) after all of your CSS (the earlier it runs, the greater chance IE users will not see a flash of um-media'd content)
+2. Reference the respond.min.js script (1kb min/gzipped) after all of your CSS (the earlier it runs, the greater chance IE users will not see a flash of un-media'd content)
 
 3. Crack open Internet Explorer and pump fists in delight
 
@@ -97,4 +97,4 @@ Alternatives to this script
 ======
 This isn't the only CSS3 Media Query polyfill script out there; but it damn well may be the fastest.
 
-If you're looking for more robust CSS3 Media Query support, you might check out http://code.google.com/p/css3-mediaqueries-js/. In testing, I've found that script to be noticeably slow when rendering complex responsive designs (both in filesize and performance), but it really does support a lot more media query features than this script. Big hat tip to the authors! :)
+If you're looking for more robust CSS3 Media Query support, you might check out http://code.google.com/p/css3-mediaqueries-js/. In testing, I've found that script to be noticeably slow when rendering complex responsive designs (both in filesize and performance), but it really does support a lot more media query features than this script. Big hat tip to the authors! :)