DOC-2369: Added `tabIndex` prop to React's tech ref (#3225)

modules/ROOT/partials/integrations/react-tech-ref.adoc

@@ -22,6 +22,7 @@
 ** xref:toolbar[`+toolbar+`]
 ** xref:tinymcescriptsrc[`+tinymceScriptSrc+`]
 ** xref:value[`+value+`]
+** xref:tabIndex[`+tabIndex+`]
 * xref:using-the-tinymce-react-component-as-a-uncontrolled-component[Using the TinyMCE React component as a uncontrolled component]
 * xref:using-the-tinymce-react-component-as-a-controlled-component[Using the TinyMCE React component as a controlled component]
 * xref:event-binding[Event binding]
@@ -154,6 +155,8 @@ xref:event-binding[`+onInit+`]:: An event handler for notifying when the editor
 
 xref:value[`+value+`]:: Sets and enforces the value of the editor. Only used for a controlled component.
 
+xref:tabIndex[`+value+`]:: Sets the tabindex of the target element that the editor wraps.
+
 [[available-props]]
 == Available props
 
@@ -597,6 +600,22 @@ For detailed information on using the `+value+` prop, see: xref:using-the-tinymc
 
 *Type:* `+String+`
 
+[[tabIndex]]
+=== `+tabIndex+`
+
+Use the `+tabIndex+` prop to set the https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/tabindex[tabindex] on the target element that the editor wraps.
+
+*Type:* `+Number+`
+
+==== Example: using `+tabIndex+`
+
+[source,jsx]
+----
+<Editor
+  tabIndex={-1}
+/>
+----
+
 [[using-the-tinymce-react-component-as-a-uncontrolled-component]]
 == Using the {productname} React component as a uncontrolled component