Update README.md

README.md

@@ -9,11 +9,15 @@ To run the testbench:
 
     # Pre-requisites
     sudo yum install -y python-imaging
+    sudo yum install -y iverilog
+    
+    # Checkout git repositories
     git clone https://github.com/potentialventures/cocotb.git
     git clone https://github.com/chiggs/oc_jpegencode.git
     
+    # Environment
     export COCOTB=`pwd`/cocotb
     
+    # Run the tests...
     cd oc_jpegencode/tb
     make
-