Readme update.

Author: photonstorm

README.md

@@ -253,6 +253,7 @@ If you are an exceptional JavaScript developer and would like to join the Phaser
 * Loader.images is a new method that allows you to pass an array of image keys, and optionally the urls, to the Loader and have them all added to the load queue in one go.
 * Tween.frameBased allows you to control if a Tween updates based on the physics step (i.e. frame based) or the system clock (time based). A frame based tween will use the physics elapsed timer when updating. This means it will retain the same consistent frame rate, regardless of the speed of the device. The duration value given should be given in frames. If the Tween uses a time based update (which is the default) then the duration is given in milliseconds. In this situation a 2000ms tween will last exactly 2 seconds, regardless of the device and how many visual updates the tween has actually been through.
 * BitmapText.smoothed is a new boolean property that allows you to set texture smoothing on a bitmap font or not. By default smoothing is always on, but you can turn it off which helps for bitmap fonts created from pixel art style character sets.
+* Text.addFontStyle and Text.addFontWeight allow you to apply font weights and styles to specific characters in a Text object. For example you can now include bold or italics within single Text objects (thanks @jdnichollsc #1950)
 
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