Fixed typo in comments. (#5407)

Sagar73594 · web-flow · commit f64ca2e084ee · 2021-07-19T13:38:40.000+03:00
A typographical error is corrected in the 2nd line of the comment. 
From = " This is un example howto use Touch Intrrerupts "
To = " This is an example of how to use Touch Intrrerupts "
diff --git a/libraries/ESP32/examples/Touch/TouchInterrupt/TouchInterrupt.ino b/libraries/ESP32/examples/Touch/TouchInterrupt/TouchInterrupt.ino
@@ -1,5 +1,5 @@
 /*
-This is un example howto use Touch Intrrerupts
+This is an example how to use Touch Intrrerupts
 The bigger the threshold, the more sensible is the touch
 */
 
