Documentation update, new figures

docs/tb.md

@@ -1,6 +1,7 @@
 # Testbench
 
 The test-bench should evolve according to the following steps:
+
 1.  Basic Usage: Behavioral memories and boot-code. With the option of a EOC flag.
 2.  Constrained Random Testing: By co-simulating on a golden model (e.g.: Spike ISA simulator) and comparing signatures. Tests generated by the torture test framework.
 3.  System Integration: Complete system integration.

include/ariane_pkg.svh

@@ -39,7 +39,7 @@ typedef struct packed {
 } misspredict;
 
 typedef enum logic[3:0] {
-    ALU, MULT, LSU, CSR
+    NONE, ALU, MULT, LSU, CSR
 } fu_t;
 
 // ---------------