Fix fenced block start.

docs/queries/select-query/result-of-a-select-query/component-results/grouping-result.md

@@ -11,7 +11,9 @@ In most cases only one type of grouping is used, but you can mix any number of q
 Examples
 --------
 
-Grouped by field: ```php
+Grouped by field: 
+
+```php
 <?php
 
 require(__DIR__.'/init.php');
@@ -69,7 +71,9 @@ htmlFooter();
 
 ```
 
-Grouped by query: ```php
+Grouped by query: 
+
+```php
 <?php
 
 require(__DIR__.'/init.php');