Update disperser.proto

api/proto/disperser/disperser.proto

@@ -18,7 +18,7 @@ service Disperser {
 	rpc DisperseBlob(DisperseBlobRequest) returns (DisperseBlobReply) {}
 
 	// DisperseBlobAuthenticated is similar to DisperseBlob, except that it requires the
-	// client to authenticate itself via the AuthenticationData message. The protoco is as follows:
+	// client to authenticate itself via the AuthenticationData message. The protocol is as follows:
 	// 1. The client sends a DisperseBlobAuthenticated request with the DisperseBlobRequest message
 	// 2. The Disperser sends back a BlobAuthHeader message containing information for the client to
 	//    verify and sign.