diff --git a/README.md b/README.md
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--- a/README.md
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@@ -16,7 +16,7 @@
 
 ## Testbench
 
-The io_ports testbench provided in the caravel_user_project template configures and tests GPIOs' functionality. It has been merged with UETRV_ESoC's testbench ([old_tb](https://github.com/ee-uet/UETRV_ESoC/blob/main/tb/SoC_tb.v)), resulting in [io_ports_tb.v](verilog/dv/io_ports_tb.v). This testbench runs full chip simulation by configuring the GPIOs using firmware for caravel's management SoC, then it loads a program into UETRV_ESoC_v2 over GPIOs configured for SPI, then a sample firmware program transmits characters over UART. These characters are fed back to UETRV_ESoC_v2 by UART loopback. Some of these characters are commands for moving a plotter's pen as described below:
+The io_ports testbench provided in the caravel_user_project template configures and tests GPIOs' functionality. It has been merged with UETRV_ESoC's testbench ([old_tb](https://github.com/ee-uet/UETRV_ESoC/blob/main/tb/SoC_tb.v)), resulting in [io_ports_tb.v](verilog/dv/io_ports/io_ports_tb.v). This testbench runs full chip simulation by configuring the GPIOs using firmware for caravel's management SoC, then it loads a program into UETRV_ESoC_v2 over GPIOs configured for SPI, then a sample firmware program transmits characters over UART. These characters are fed back to UETRV_ESoC_v2 by UART loopback. Some of these characters are commands for moving a plotter's pen as described below:
 
 - 'u' to move pen up in 2D-grid
 - 'd' for down