Update docusaurus/docs/protocol/primitives/probabilistic_proofs.md

Co-authored-by: Bryan White <bryanchriswhite@gmail.com>

docusaurus/docs/protocol/primitives/probabilistic_proofs.md

@@ -456,7 +456,7 @@ See [Pocket_Network_Morse_Probabilistic_Proofs.ipynb](./Pocket_Network_Morse_Pro
 
 Accept the fact that the majority of the block space is taken up by Proofs.
 
-The number of relays in the network scales inversely to `ProofRequestProbability`. For example:
+The number of on-chain relays (proofs) required by the network scales inversely to `ProofRequestProbability`. For example:
 
 - `ProofRequestProbability` = 0.5 -> 2x scale
 - `ProofRequestProbability` = 0.25 -> 4x scale