TASK: Document AJAX search controller

Author: kdambekalns

README.md

@@ -36,3 +36,13 @@ These can be used to provide autocompletion on the search input using a JS libra
 In case you need to build the URI to the suggest controller yourself, this is what the form uses:
 
     {f:uri.action(action: 'index', controller: 'Suggest', package: 'Flowpack.SearchPlugin', format: 'json', absolute: 1)}
+
+## AJAX search
+
+The plugin comes with a controller that can be reached like this per default, using `GET`:
+
+    {f:uri.action(action: 'index', controller: 'AjaxSearch', package: 'Flowpack.SearchPlugin', absolute: 1)}
+
+It expects the search term as a parameter named `q` (as defined in `AjaxSearch.ts2`). This controller
+renders the search results and returns them as HTML without any of the page template. It can therefore
+be used to request search results via AJAX and display the result by adding it to the DOM as needed.

Resources/Private/TypoScript/AjaxSearch.ts2

@@ -1,6 +1,6 @@
 prototype(Flowpack.SearchPlugin:AjaxSearch) < prototype(TYPO3.TypoScript:Template) {
     templatePath = 'resource://Flowpack.SearchPlugin/Private/Templates/NodeTypes/AjaxSearch.html'
     searchResultRenderer = Flowpack.SearchPlugin:SearchResultRenderer {
-        @override.searchResults = ${Search.query(site).fulltext(request.arguments.q).execute()}
+        @context.searchResults = ${Search.query(site).fulltext(request.arguments.q).execute()}
     }
 }