Corrected staking org

nix/topology-lib.nix

@@ -179,7 +179,7 @@ pkgs: with pkgs; with lib; rec {
     region = regions.${r}.name;
     producers =  # some nearby relays:
       [ (regionalRelaysProducer region 3) ];
-    org = "IOHK";
+    org = "MCA";
   } // attrs;
 
   /* Generate relay nodes definitions,
@@ -297,7 +297,7 @@ pkgs: with pkgs; with lib; rec {
                   (filter (r: r != rLetter) regionLetters)
                 # a share of the third-party relays:
                 ++ (filter (p: mod p.index nbRelays == (nodeIndex - 1)) (indexedThirdPartyRelays.${region} or []));
-              org = "IOHK";
+              org = "MCA";
             }
           ) relayIndexesInRegion;
           # coreNodes shift in a way that accomplish full rotation accross regions: