Update readme

README.md

@@ -83,7 +83,11 @@ The method returns an object with up to 3 keys.
 This helper method allows you to include additional symbols to reference _after_ calling the constructor.
 
 ### Options
-These are the available options which can be passed into either the second parameter of the `new Savager()` constructor which _affects every call of `.prepareAssets()` from the instance_ **or** the second parameter of the `.prepareAssets()` method which _affects only that call_. The description explains the return value after calling `.prepareAssets()`.
+These are the available options which can be passed into the second parameter of either the `new Savager()` constructor or `.prepareAssets()`.
+
+Using it on the constructor _affects every call of `.prepareAssets()`_ made from the instance.
+
+Using it on the method `.prepareAssets()` _affects only that call_.
 
 #### `attemptInject`
 **`Boolean`** `false`
@@ -103,17 +107,17 @@ One or a list of class names to add to the SVG assets.
 #### `consolidate`
 **`Boolean` or `String`** `true`
 
-When set to `true`, this will attempt to consolidate reference sheets if multiple usages of Savager are used on the page. When set to a String, it will be the `id` of the single reference sheet on the page after consolidation. Setting to `false` will not consolidate reference sheets.
+When set to `true`, this will attempt to consolidate reference sheets if multiple usages of Savager are used on the page. When set to a `String`, it will be the `id` of the single reference sheet on the page after consolidation. Setting to `false` will not consolidate reference sheets.
 
 #### `externalUrl`
 **`Boolean` or `String`** `void`
 
-If your assets are hosted externally (eg. CDN), you can provide the path to the assets here. Using this will not provide a `sheet` key when using this option.
+If your assets are hosted externally (eg. CDN), you can provide the path to the assets here. Using this will not return a `sheet` resource when preparing assets.
 
 #### `toSvgElement`
 **`Boolean` or `Function`** `false`
 
-When providing a function, the input will be SVG asset string which may transform into an element for the needs of your app.
+When providing a function, the input will be SVG asset string which may transform into an element for the needs of your app. When providing `true`, it wil use a default render function to return valid `SVGElement` nodes.
 
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