Add some comments.

extension/qfq/qfq/BuildFormBootstrap.php

@@ -416,6 +416,7 @@ EOF;
         $html = '';
         $htmlLabel = '';
 
+        // Label
         if ($formElement[FE_BS_LABEL_COLUMNS] > 0) {
             $htmlLabel = $this->buildLabel($htmlFormElementName, $formElement[FE_LABEL]);
         }
@@ -423,9 +424,11 @@ EOF;
         $html .= $this->customWrap($formElement, $htmlLabel, FE_WRAP_LABEL, $formElement[FE_BS_LABEL_COLUMNS],
             [$this->wrap[WRAP_SETUP_LABEL][WRAP_SETUP_START], $this->wrap[WRAP_SETUP_LABEL][WRAP_SETUP_END]], $formElement[FE_HTML_ID] . HTML_ID_EXTENSION_LABEL);
 
+        // Input
         $html .= $this->customWrap($formElement, $htmlElement, FE_WRAP_INPUT, $formElement[FE_BS_INPUT_COLUMNS],
             [$this->wrap[WRAP_SETUP_INPUT][WRAP_SETUP_START], $this->wrap[WRAP_SETUP_INPUT][WRAP_SETUP_END]], $formElement[FE_HTML_ID] . HTML_ID_EXTENSION_INPUT);
 
+        // Note
         $note = Support::wrapTag("<div class='qfq-note'>", $formElement[FE_NOTE], true);
         $html .= $this->customWrap($formElement, $note, FE_WRAP_NOTE, $formElement[FE_BS_NOTE_COLUMNS],
             [$this->wrap[WRAP_SETUP_NOTE][WRAP_SETUP_START], $this->wrap[WRAP_SETUP_NOTE][WRAP_SETUP_END]], $formElement[FE_HTML_ID] . HTML_ID_EXTENSION_NOTE);