Minor documentation improvements.

Demos/Host/ClassDriver/KeyboardHostWithParser/KeyboardHostWithParser.c

@@ -272,7 +272,7 @@ void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
  *
  *  \param[in] CurrentItem  Pointer to the item the HID report parser is currently working with
  *
- *  \return Boolean true if the item should be stored into the HID report structure, false if it should be discarded
+ *  \return Boolean \c true if the item should be stored into the HID report structure, \c false if it should be discarded
  */
 bool CALLBACK_HIDParser_FilterHIDReportItem(HID_ReportItem_t* const CurrentItem)
 {