Low-Level-SPI.md

@@ -27,6 +27,9 @@ Consider that the GPIOs associated to the SPI bus (`SPI1` in this example) can v
 `PA5`, `PA6` and `PA7`.
 
 ```cpp
+namespace Boardcore
+{
+
 using namespace miosix;
 
 typedef Gpio<GPIOA_BASE, 5> sck;
@@ -72,10 +75,13 @@ private:
 
 ## Cpp file
 
-Import the header file and specify that we are using the `miosix` namespace:
+Import the header file and specify the namespaces:
 
 ```cpp
-#include "SpiDriver.h"
+#include "SpiDriver.h”
+
+namespace Boardcore
+{
 
 using namespace miosix;
 ```