Fixed Doxygen

Author: homeodor

Adafruit_SPITFT.cpp

@@ -1172,8 +1172,9 @@ void Adafruit_SPITFT::dmaWait(void) {
 }
 
 /*!
-    @brief  Check if DMA transfer is active. Always returts false  if DMA
+    @brief  Check if DMA transfer is active. Always returts false if DMA
             is not enabled.
+    @return true if DMA is enabled and transmitting data, false otherwise.
 */
 bool Adafruit_SPITFT::dmaBusy(void) const {
 #if defined(USE_SPI_DMA) && (defined(__SAMD51__) || defined(ARDUINO_SAMD_ZERO))