update: add finalization ref & update archived links

docs/dev-guide/src/getting-started/substrate-resources.md

@@ -1,7 +1,7 @@
 # Learning about substrate
 
 The Creditcoin blockchain is built on the [substrate framework](https://docs.substrate.io/), which provides most of the underlying
-blockchain functionality (P2P networking, block production, RPC server, storage, etc.). This allows us
+blockchain functionality (P2P networking, block production, block finalizaiton, RPC server, storage, etc.). This allows us
 to focus on the functionality specific to creditcoin and additionally we benefit from
 existing tooling developed for the polkadot/substrate ecosystem (such as the polkadot explorer, polkadotJS, telemetry, etc.).
 
@@ -12,6 +12,6 @@ all of the material in the [Learn section](https://docs.substrate.io/learn/).
 
 That should give you a rough understanding of substrate's architecture, and how the pieces fit together.
 
-For learning about FRAME and best practices, the [substrate repository](https://github.com/paritytech/substrate) has a bunch of pallets of varying complexity that serve as good reference points.
-For starters, the [sudo pallet](https://github.com/paritytech/substrate/tree/polkadot-v0.9.32/frame/sudo) is fairly small and
+For learning about FRAME and best practices, the [substrate repository](https://github.com/paritytech/polkadot-sdk/tree/master/substrate) has a bunch of pallets of varying complexity that serve as good reference points.
+For starters, the [sudo pallet](https://github.com/paritytech/polkadot-sdk/tree/master/substrate/frame/sudo) is fairly small and
 digestible.