Updated README

Author: mdeanjones

README.md

@@ -6,7 +6,55 @@ An [ember-cli](https://www.ember-cli.com) addon for using [Tooltipster](https://
 ----
 
 ## Installation
-(NPM support coming soon)
+(_We will be registering this as an NPM package soon. For now, pull what you need directly from GitHub. See [Git URLs as Dependencies](https://docs.npmjs.com/files/package.json#git-urls-as-dependencies)._)
 ```
-npm install nsf-open/nsf-ember-tooltip#master --save-dev
-```
+npm install nsf-open/nsf-ember-tooltip#commit-ish --save-dev
+```
+
+## Usage
+It's pretty simple. You provide the tooltip content, and the trigger content. The component will take care of the rest.
+
+Inline form
+```handlebars
+{{-- Using positional parameters --}}
+{{tool-tip 'Here is some more information' 'I have a tooltip'}}
+
+{{-- Equivalent with named parameters --}}
+{{tool-tip content='Here is some more information' text='I have a tooltip'}}
+
+{{-- The title attribute may also be used to provide the tip's content --}}
+{{tool-tip title='Here is some more information' text='I have a tooltip'}}
+```
+
+Block form
+```handlebars
+{{-- The component's yield block becomes the trigger --}}
+{{#tool-tip 'Here is some more information'}}
+    I have a tooltip
+{{/tool-tip}}
+
+{{-- For complex content that you do not want to create programmatically --}}
+{{-- you can also define the tooltip content in the block --}}
+{{#tool-tip}}
+    I have a tooltip
+    <div data-tooltip-content>
+        <p><strong>Here is some more information</strong></p>
+    </div>
+{{/tool-tip}}
+```
+(Note: using `data-tooltip-content` in the component's yield block currently has one limitation: its content cannot be re-rendered. When first created, the component detaches that element from the DOM before passing it to Tooltipster. Sorry, we're working on it!)
+
+## Configuration
+`{{tool-tip}}` supports (almost) all of the basic options provided by Tooltipster, listed [here](https://iamceege.github.io/tooltipster/#options).
+
+NOTE: We need to deviate from Tooltipster's options in one significant place - the `trigger` option. Since `trigger` is used internally by Ember components, use `tipTrigger` instead.
+
+In addition, we have added:
+| Property | Type | Default | Description
+| --- | --- | --- | --- |
+| canTab | Boolean | true | Adds `tabindex=0` to the tooltip's trigger so it will be included in the page's tab flow. If the tooltip's trigger set to `hover`, then the tooltip will be shown on focus and hidden on blur. If the trigger is `click`, then the enter key will toggle the tooltip when the element has focus.
+| enabled | Boolean | true | A bound property that will enable/disable the tooltip by calling `.tooltipster('enable')` and `.tooltipster('disable')`.
+| showTip | Boolean | false | A bound property that may be used to programmatically show/hide the tooltip.
+| showTipOnUpdate | Boolean | false | If true, changes to the `content` value will cause the tooltip to be shown.
+| tipTextAttr | String | `"[data-tooltip-content]"` | Any valid jQuery selector that will be used to search the component's block for the tooltip's content.
+