Card: link the protocol document in this repository

README.md

@@ -33,7 +33,7 @@ The suite has two tracks over the same set of PCB structures:
 | `EMVal-NF-v0` | complex electric and magnetic near fields at three-dimensional probe locations; this is the primary foundation-model target |
 | `EMVal-SP-v0` | complex S-parameters across frequencies and port pairs; this is a downstream response-prediction task |
 
-A model can enter either track or both tracks. Each metric is first computed for one board and is then averaged across boards with equal weight. The companion evaluation repository contains `PROTOCOL.md` and the reference scorer (link pending).
+A model can enter either track or both tracks. Each metric is first computed for one board and is then averaged across boards with equal weight. [`PROTOCOL.md`](PROTOCOL.md) in this repository gives the exact definition of every metric.
 
 ### This release: v0
 
@@ -55,7 +55,7 @@ v0 is a public demonstration release of 500 labeled boards. It contains one spli
 
 `EMVal-SP` reports real-and-imaginary RMSE in the complex plane, magnitude weighted-MAE in dB, and phase weighted-MAE in radians. The two weighted metrics use a sigmoid weight centered at −20 dB with a 2 dB rolloff. This weighting reduces the contribution of deep nulls, where magnitude and phase errors have limited engineering significance.
 
-Each metric is defined for one board and then averaged across boards. Lower values are better for the error metrics. Higher values are better for median local alignment, where 1 is the optimum. The companion `PROTOCOL.md` gives the formulas and reference-scorer output names.
+Each metric is defined for one board and then averaged across boards. Lower values are better for the error metrics. Higher values are better for median local alignment, where 1 is the optimum. [`PROTOCOL.md`](PROTOCOL.md) gives the formulas and reference-scorer output names.
 
 ### Files per board