Fix code block formatting (#192)

Co-authored-by: mrwolferinc <66963621+mrwolferinc@users.noreply.github.com>

Co-authored-by: marqdevx <p.marquinez@arduino.cc>

Author: mrwolferinc

content/learn/04.electronics/03.lcd-displays/lcd-displays.md

@@ -271,7 +271,7 @@ void loop() {
 
   lcd.clear();
 }
-```s
+```
 
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