Update readme to better call out the default parser being XML (fixes #4…

…).

README.md

@@ -23,7 +23,7 @@ A `<Markup>` component that renders HTML (or XML) using Virtual DOM, mapping a s
 
 ### Overview
 
-The `<Markup />` component takes some `markup`, an optional mapping of custom element names to `components`, and an optional `type` of either `xml` (the default) or `html`.
+The `<Markup />` component takes some `markup`, an optional mapping of custom element names to `components`, and an optional `type` of either `xml` or `html`.
 
 In it's simplest form, `<Markup />` is just a diffing XML/HTML renderer. It only re-renders when you change the `markup` prop.
 
@@ -34,6 +34,8 @@ let html = `<h1>hello</h1> <p>Testing 1 2 3...</p>`;
 render(<Markup markup={html} />, document.body);
 ```
 
+> **Note:** by default, content is parsed as XML, which may be too strict for your content but is the fastest option. Pass `type="html"` to parse as HTML.
+
 
 ### Custom Elements via Components
 
@@ -74,6 +76,10 @@ Subsequent `render()`s diff against that DOM just like a normal JSX rendering fl
 
 ### Optional properties
 
+`type` - By default, content is parsed as XML. Pass `type="html"` to use an HTML parser.
+
+`onError` - Suppress XML/HTML parse errors and instead pass them to this function.
+
 `allow-scripts` - By default, preact-markup sanitizes the rendered HTML by removing script tags. The `allow-scripts` property re-enables script tags, _executing any JavaScript code within them_.
 
 > ##### Example