docs: update LED description

README.md

@@ -16,10 +16,10 @@ The tester can of course not check for any active circuitry in the cable and mig
 |:----------|:----------|
 | VBUS 1-4  | One LED for each VBUS connection in the cable. Can give a hint on power capabilities |
 | VGND 1-4  | One LED for each Ground connection |
-| Shield    | Shows if the shielding is connected correct on both ends |
-| USB 2.0   | Lights up when the USB2 data pair is connected |
-| USB 3.x   | One LED for each TX/RX pair in the cable. If only one is lit, USB3.2 will not work |
-| CC        | One of these must be connected, the other should not be. A dim LED can be a hint for an active cable |
+| Shield    | Shows if the shielding is connected on both ends |
+| USB 2.0   | Lights up when the USB2 differential pair is connected |
+| USB 3.x   | One LED for each set of TX/RX pairs in the cable. If only one is lit, USB3.2 will not work |
+| CC        | One of these must be connected, the other should not be. A dim LED *can* be a hint for an active cable |
 | SBU       | SideBand Usage - Used for alternative functions like audio and video connections |
 
 The PCB is designed with production by JLCPCB in mind and all parts but the USB-Connectors are from their basic parts library. I strongly suggest getting these assembled since soldering the USB connectors by hand is not easy.