upd codestyle example

- make examples more equal

examples/rfid_write_personal_data/rfid_write_personal_data.ino

@@ -22,13 +22,14 @@
 #include <SPI.h>
 #include <MFRC522.h>
 
-#define SS_PIN 10    //Arduino Uno
-#define RST_PIN 9
-MFRC522 mfrc522(SS_PIN, RST_PIN);        // Create MFRC522 instance.
+#define RST_PIN         9           // Configurable, see typical pin layout above
+#define SS_PIN          10          // Configurable, see typical pin layout above
+
+MFRC522 mfrc522(SS_PIN, RST_PIN);   // Create MFRC522 instance
 
 void setup() {
         Serial.begin(9600);        // Initialize serial communications with the PC
-        SPI.begin();                // Init SPI bus
+        SPI.begin();               // Init SPI bus
         mfrc522.PCD_Init();        // Init MFRC522 card
         Serial.println(F("Write personal data on a MIFARE PICC "));
 }