Add doxygen groups

include/ucore/saturating_math.h

@@ -1,8 +1,11 @@
 #include <stdint.h>
 
-/** Implementation of saturated operation on uintaa_t. 
- * Opaerations are clamped betweehn 0 and UINTaa_MAa instead of
- * wrapping around*/
+/** Implementation of saturated operation on uintxx_t. 
+ *
+ * Operations are clamped between 0 and UINTxx_MAX instead of
+ * wrapping around.
+ *
+ * multiplication, subtraction and addition operations are provided.*/
 
 #define UC_SAT_ADD(a, b, type, max_val)\
 ((type)((a) + (b)) >= (a) ? (a) + (b) : (max_val))