added CodeLens support to XMLFeatures.md

Author: Alexander Chen

docs/CodeLens.md

@@ -54,3 +54,7 @@ Here is a demonstration of the above Code Lens:
 Here is a demonstration of the code lens for `xs:element`:
 
 ![An element root is declared that contains an element boot. Above the declaration of boot, there is a code lens that links to the reference in root.](./images/CodeLens/XSDElementCodeLens.gif)
+
+### XML Features
+
+CodeLens provides grammar binding for unbound XML documents, appearing above the root element, which will trigger the [XML Binding Wizard](BindingWithGrammar.md#the-xml-binding-wizard).

docs/Features/XMLFeatures.md

@@ -144,6 +144,18 @@ This also works for other portions of an XML document, such as attributes and th
 
 ![Selection Range](../images/Features/SelectionRange.gif)
 
+## CodeLens
+
+CodeLens is supported for `.xml` files for a number of different features.
+
+### CodeLens 'Bind to grammar/schema...'
+
+If the current XML document is not bound to an existing grammar/schema, a CodeLens will appear above the root element, which will trigger the [XML Binding Wizard](../BindingWithGrammar.md#the-xml-binding-wizard).
+
+![CodeLens Bind](../images/Features/CodeLensBind.png)
+
+For more information on CodeLens capabilities, see [CodeLens](../CodeLens.md#code-lens).
+
 ## Custom Feature Implementation
 
 You can implement your own feature with a [Java extension](../Extensions.md).