Link to Rust API docs

Author: Conor Okus

docs/tutorials/building-a-node-with-ldk/introduction.md

@@ -8,28 +8,28 @@ For an integrated example of an LDK node in Rust, see the [Sample Node](https://
 
 The following tutorials will show you how to build the simplest lightning node using LDK, that fufills the following tasks:
 
-1. **Connect to peers** 
-2. **Open channels** 
+1. **Connecting to Peers** 
+2. **Open Channels** 
 3. **Send Payments** 
 4. **Receive Payments**
-5. **Close channels**
+5. **Close Channels**
 
 ### Foundational Components
 
 Let's start by looking at the core components we'll need to make this node work for the tasks we outlined above.
 
-1. A `PeerManager`, for establishing TCP/IP connections to other nodes on the lightning network.
-2. A `ChannelManager`, to open and close channels.
+1. A [`PeerManager`](https://docs.rs/lightning/*/lightning/ln/peer_handler/struct.PeerManager.html), for establishing TCP/IP connections to other nodes on the lightning network.
+2. A [`ChannelManager`](https://docs.rs/lightning/*/lightning/ln/channelmanager/struct.ChannelManager.html), to open and close channels.
 3. Payments & Routing, ability to create and pay invoices.
 
 To make the above work we also need to setup a series of supporting modules, including:
-1. A `FeeEstimator`
-2. A `Logger`
-3. A `TransactionBroadcaster`
-4. A `NetworkGraph`
-5. A `Persister`
-6. An `EventHandler`
-7. A `TransactionFilter`
-8. A `ChainMonitor`
-9. A `KeysManager`
-10. A `Scorer`
+1. A [`FeeEstimator`](https://docs.rs/lightning/*/lightning/chain/chaininterface/trait.FeeEstimator.html)
+2. A [`Logger`](https://docs.rs/lightning/*/lightning/util/logger/index.html)
+3. A Transaction [`Broadcaster`](https://docs.rs/lightning/*/lightning/chain/chaininterface/trait.BroadcasterInterface.html)
+4. A [`NetworkGraph`](https://docs.rs/lightning/*/lightning/routing/gossip/struct.NetworkGraph.html)
+5. A [`Persister`](https://docs.rs/lightning/*/lightning/util/persist/trait.Persister.html)
+6. An [`EventHandler`](https://docs.rs/lightning/*/lightning/util/events/trait.EventHandler.html)
+7. A Transaction [`Filter`](https://docs.rs/lightning/*/lightning/chain/trait.Filter.html)
+8. A [`ChainMonitor`](https://docs.rs/lightning/*/lightning/chain/chainmonitor/index.html)
+9. A [`KeysManager`](https://docs.rs/lightning/*/lightning/chain/keysinterface/struct.KeysManager.html)
+10. A [`Scorer`](https://docs.rs/lightning/*/lightning/routing/scoring/index.html)