Update content/hardware/02.hero/boards/uno-r4-wifi/tutorials/dac/dac.md

Co-authored-by: Karl Söderby <35461661+karlsoderby@users.noreply.github.com>

Author: jacobhylen

content/hardware/02.hero/boards/uno-r4-wifi/tutorials/dac/dac.md

@@ -1,6 +1,6 @@
 ---
 title: "Arduino UNO R4 WiFi Digital-to-Analog Converter (DAC)
-description: "Start building "
+description: "Learn how create waveforms and output them on a piezo, using the DAC on the UNO R4 WiFi board."
 tags:
   - Guide
   - DAC