fix small typos in README

README.md

@@ -1,8 +1,8 @@
 # SCSS Blend Modes
-CSS doesn't natively support color blending the way that Photoshop does. This library attempts to fake that by allowing you to blend a foreground color with a background color in order to approximate color blending. This not a dynamic blend; you can't use this to blend a color with an image. This was originally intended for use with the [Compass Photoshop Drop Shadow Plugin](https://github.com/heygrady/compass-photoshop-drop-shadow) but it proved impractical to integrate.
+CSS doesn't natively support color blending the way that Photoshop does. This library attempts to fake that by allowing you to blend a foreground color with a background color in order to approximate color blending. This is not a dynamic blend; you can't use this to blend a color with an image. This was originally intended for use with the [Compass Photoshop Drop Shadow Plugin](https://github.com/heygrady/compass-photoshop-drop-shadow) but it proved impractical to integrate.
 
 ## A Note on Real CSS3 Blend Modes
-Adobe has been working on a [W3C spec](http://www.w3.org/TR/compositing/) to [add blend modes to CSS3](http://blogs.adobe.com/webplatform/2012/04/04/bringing-blending-to-the-web/). However, css blend modes have [extremely limited support in browsers](http://html.adobe.com/webplatform/graphics/blendmodes/browser-support/), as of September, 2013. This library is **not** a polyfill for those blend modes. A polyfill for dynamic blend modes will require something like SVG and JavaScript and would likely be quite complicated (or impossible).
+Adobe has been working on a [W3C spec](http://www.w3.org/TR/compositing/) to [add blend modes to CSS3](http://blogs.adobe.com/webplatform/2012/04/04/bringing-blending-to-the-web/). However, CSS blend modes have [extremely limited support in browsers](http://html.adobe.com/webplatform/graphics/blendmodes/browser-support/), as of September 2013. This library is **not** a polyfill for those blend modes. A polyfill for dynamic blend modes will require something like SVG and JavaScript and would likely be quite complicated (or impossible).
 
 ## A Note on Color Blending
 The included functions are based on [blend.js](https://github.com/jseidelin/pixastic/blob/master/actions/blend.js) from the [Pixastic Image Processing Library](http://www.pixastic.com/lib/). I chose this library because JavaScript is easy enough to read and the blend modes seemed to match closely with what Photoshop offered. Additionally, a [detailed explaination of Photoshop blend modes](http://photoblogstop.com/photoshop/photoshop-blend-modes-explained) was used as a reference as well as the [Wikipedia article on blend modes](http://en.wikipedia.org/wiki/Blend_modes).