GPIO-Usage-&-Used-Pins.md

@@ -23,7 +23,10 @@ If you want to know more about GPIOs, check out the [GPIO Tutorial - Miosix Wiki
 #### 1. Template API
 To use a pin in your board you can simply do:
 ```cpp
-typedef miosix::Gpio<GPIOA_BASE, 5> somePin; // Define pin PA5 as somePin
+// define pin PA5 as somePin
+typedef miosix::Gpio<GPIOA_BASE, 5> somePin;
+// or alternatively
+using somePin = miosix::Gpio<GPIOA_BASE, 5>;
 ```
 
 To read from that pin: