lowercase link to React.createElement section (#1509)

content/docs/reference-react.md

@@ -198,7 +198,7 @@ This API was introduced as a replacement of the deprecated `React.addons.cloneWi
 React.createFactory(type)
 ```
 
-Return a function that produces React elements of a given type. Like [`React.createElement()`](#createElement), the type argument can be either a tag name string (such as `'div'` or `'span'`), a [React component](/docs/components-and-props.html) type (a class or a function), or a [React fragment](#reactfragment) type.
+Return a function that produces React elements of a given type. Like [`React.createElement()`](#createelement), the type argument can be either a tag name string (such as `'div'` or `'span'`), a [React component](/docs/components-and-props.html) type (a class or a function), or a [React fragment](#reactfragment) type.
 
 This helper is considered legacy, and we encourage you to either use JSX or use `React.createElement()` directly instead.