Update README.md

README.md

@@ -229,7 +229,7 @@ $OPENWIFI_DIR/user_space/build_wpa_supplicant_wo11b.sh $OPENWIFI_DIR
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 ## Porting guide
 
-This section explains the porting work by showing the differences between openwifi and Analog Devices reference design. openwifi is based on 4fea7c5 (2019 r1) of [HDL Reference Designs](https://github.com/analogdevicesinc/hdl).
+This section explains the porting work by showing the differences between openwifi and Analog Devices reference design. openwifi is based on 2019_R1 of [HDL Reference Designs](https://github.com/analogdevicesinc/hdl).
 - Open the fmcomms2 + zc706 reference design at hdl/projects/fmcomms2/zc706 (Please read Analog Devices help)
 - Open the openwifi design zc706_fmcs2 at openwifi-hw/boards/zc706_fmcs2 (Please read openwifi-hw repository)
 - "Open Block Design", you will see the differences between openwifi and the reference design. Both in "diagram" and in "Address Editor".