fix(jargon): replace blockchain addresses with network addresses in offline-key-derivation meta

Author: marc0olo

docs/guides/chain-fusion/offline-key-derivation.md

@@ -1,6 +1,6 @@
 ---
 title: "Offline public key derivation"
-description: "Derive canister threshold public keys and blockchain addresses offline. No management canister call or cycles required."
+description: "Derive canister threshold public keys and network addresses offline: no management canister call or cycles required."
 sidebar:
   order: 6
 ---