Update README.md

Author: jfullstackdev

README.md

@@ -32,7 +32,8 @@ The digital pins are the very first to be
 encountered because they can be used by
 components in several ways. They will be
 connected to the terminals of electronic
-components.
+components. There are 14 Digital Pins
+in Arduino UNO Board.
 
 ### The GND
 ![gnd](https://github.com/xdvrx1/single-display-arduino-project/blob/main/res/src5.png?raw=true)