Install Cocotb and IVerilog first before running TB sim steps

Author: marwannismail

test/README.md

@@ -5,6 +5,12 @@ See below to get started or for more information, check the [website](https://ti
 
 ## Setting up
 
+Firstly, install iVerilog and Cocotb:
+```sh
+sudo apt install iverilog verilator
+pip3 install cocotb pytest
+```
+
 1. Edit [Makefile](Makefile) and modify `PROJECT_SOURCES` to point to your Verilog files.
 2. Edit [tb.v](tb.v) and replace `tt_um_example` with your module name.