chore(documentation): Updated the documentation for `injectJavaScript` (#114)

docs/Reference.md

 
 - [`source`](Reference.md#source)
 - [`automaticallyAdjustContentInsets`](Reference.md#automaticallyadjustcontentinsets)
-- [`injectJavaScript`](Reference.md#injectjavascript)
 - [`injectedJavaScript`](Reference.md#injectedjavascript)
 - [`mediaPlaybackRequiresUserAction`](Reference.md#mediaplaybackrequiresuseraction)
 - [`nativeConfig`](Reference.md#nativeconfig)
 - [`goBack`](Reference.md#goback)
 - [`reload`](Reference.md#reload)
 - [`stopLoading`](Reference.md#stoploading)
+- [`injectJavaScript`](Reference.md#injectjavascriptstr)
 
 ---
 
 
 ---
 
-### `injectJavaScript`
-
-Function that accepts a string that will be passed to the WebView and executed immediately as JavaScript.
-
-| Type     | Required |
-| -------- | -------- |
-| function | No       |
-
----
-
 ### `injectedJavaScript`
 
 Set this to provide JavaScript that will be injected into the web page when the view loads.
 
 Stop loading the current page.
 
+### `injectJavaScript(str)`
+
+```javascript
+injectJavaScript("... javascript string ...");
+```
+
+Executes the JavaScript string.
+
 ## Other Docs
 
 Also check out our [Getting Started Guide](Getting-Started.md) and [In-Depth Guide](Guide.md).