Update PincodeScreen.js

MocionesIUPI/screens/PincodeScreen.js

     pinInput = React.createRef();
   
     _checkCode = (code) => {
-      if (code != this.props.navigation.state.params.Pin) {
+      if (code != this.props.navigation.state.params.Pin) { //this is for recieving the parameters from another screen
         this.pinInput.current.shake()
           .then(() => this.setState({ code: '' }));
       } else {