Update version string

miosix/util/version.cpp

@@ -64,7 +64,7 @@ namespace miosix {
 #define AU
 #endif
 
-const char AU ver[]="Miosix v2.11 (" _MIOSIX_BOARDNAME ", " __DATE__ " " __TIME__ CV ")";
+const char AU ver[]="Miosix v2.20 (" _MIOSIX_BOARDNAME ", " __DATE__ " " __TIME__ CV ")";
 
 const char *getMiosixVersion()
 {