Updating README.md

Author: kenwheeler

README.markdown

@@ -185,14 +185,15 @@ The deck tag is the top level tag and there should only be one of them. It suppo
 
 ####\<Slide /> (Base)
 
-The slide tag represents each slide in the presentation. It supports the following props, in addition to any of the props outlined in the Base class props listing:
+The slide tag represents each slide in the presentation. Giving a slide tag an `id` attribute will replace its number based navigation hash with the `id` provided. It supports the following props, in addition to any of the props outlined in the Base class props listing:
 
 |Name|PropType|Description|
 |---|---|---|
 |align| React.PropTypes.string | Accepts a space delimited value for positioning interior content. The first value can be `flex-start` (left), `center` (middle), or `flex-end` (bottom). The second value can be `flex-start` (top) , `center` (middle), or `flex-end` (bottom). You would provide this prop like `align="center middle"`, which is it's default.
 |transition|React.PropTypes.array|Accepts `slide`, `zoom`, `fade` or `spin`, and can be combined. Sets the slide transition. **Note: If you use the 'scale' transition, fitted text won't work in Safari.**|
 |transitionDuration| React.PropTypes.number| Accepts integer value in milliseconds for slide transition duration.
-|notes| React.PropTypes.stings| Text which will appear in the presenter mode. Can be HTML.
+|notes| React.PropTypes.string| Text which will appear in the presenter mode. Can be HTML.
+|id| React.PropTypes.string | Used to create a string based hash.
 
 ###Layout Tags