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+
 LINSORTER - LinearINsertion SORTER 
 =======================================================
 
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 * Submodule `lis` -  contains a linear insertion sorter (LIS) generator written in [Chisel ](http://www.chisel-lang.org) hardware design language. It comprises description of three types of the linear insertion sorter, parameter definition, setup explanation and many other useful information related to blocks that are depicted at presented global block scheme.
 * Submodule  `wb2axip` - contains wishbone to AXI4 bridge. Current submodule is forked version of the [ZipCPU/wb2axip](https://github.com/ZipCPU/wb2axip). While all blocks inside LINSORTER use AXI4 memory mapped bus, this bridge was necessary to attach so that correct connection between processor and linear insertion sorters is established.
 * `doc` - contains global block scheme of the LINSORTER in svg and png format.
-* `top/dv/LISTest` - contains verilog testbenches mostly, together with .c files.
-* `top/rtl/LISTest` - contains `user_proj_example.v`.
-* Makefile - have targets for verilog generation (module LISTest) and for running scala tests described  inside `lis` submodule.
+* `top/dv/LISTest` - contains verilog testbenches for LINSORTER integrated with Caravel
+* `top/rtl/LISTest` - contains `user_proj_example.v` which is the top level verilog file for LINSORTER
+* Makefile - has targets for verilog and test generation
 
+## Useful commands
+
+In order to generate verilog file LISTest.v which contains verilog code for LinearINsertion SORTER, run command:
+
+    $ make verilog_lis
+
+To run chisel tests, run command:
+
+    $ make test_lis
+
+In order to run verilog tests for LINSORTER connected to Caravel, PDK_ROOT and RISCV32 paths must be set. RISCV32 is path to RV32I Toolchain. For RV32I toolchain installation click [here](https://github.com/cliffordwolf/picorv32#building-a-pure-rv32i-toolchain). To check if paths are set, run command:
+
+    $ make check-env
+
+In order to test LINSORTER attached to the Caravel, run command:
+
+    $ make test_top
+
+To clean data generated by verilog testbenches, run:
+
+    $ make clean_top
+
+## Address space for LINSORTER
+```
+User address space       0x3000_0000
+    ├── in_split:      0x3000_0000
+    ├── lisFifo:       0x3000_1000
+    ├── lisFifo_mux:   0x3000_1100
+    ├── lisFixed:      0x3000_2000
+    ├── lisFixed_mux:  0x3000_2100
+    ├── lisInput:      0x3000_3000
+    ├── lisInput_mux:  0x3000_3100
+    ├── bist:          0x3000_4000
+    ├── bist_split:    0x3000_4100
+    ├── out_mux:       0x3000_5000
+    ├── uart:          0x3000_6000
+    └── uart_split:    0x3000_6100
+```