feat: add machine drawings in README.md to clarify explanation

Author: FedericoAmura

packages/event-listener/README.md

@@ -20,6 +20,8 @@ yarn add @lit-protocol/event-listener
 
 ## Core Concepts
 
+![State Machine](./graphs/stateMachine.png)
+
 ### State Machine
 
 A state machine consists of states, and transitions between those states which are triggered based on a collection of Listeners.
@@ -66,6 +68,8 @@ Listeners monitor various events and feed data to transitions:
 
 Here's a simple example that mints a PKP, a Capacity Delegation NFT and then runs a Lit Action every hour:
 
+![Run LitAction Interval](./graphs/runLitActionInterval.png)
+
 ```typescript
 async function runLitActionInterval() {
   const stateMachine = StateMachine.fromDefinition({
@@ -147,6 +151,8 @@ There care cases where such a declarative interface won't be enough for your use
 
 Here is an example that listens to Ethereum block hashes, looking for those that end in '0'
 
+![Listen Ethereum Blocks](./graphs/ethZeroBlockhash.png)
+
 ```typescript
 async function monitorEthereumBlocksWithHashEndingWithZero() {
   const litNodeClient = new LitNodeClient({
@@ -232,6 +238,8 @@ By leveraging context from the State Machine in combination with Lit PKPs, it is
 
 In this example, when a State Machine PKP receives USDC in Base Sepolia, it will send the same amount to the sender but in Ethereum Sepolia.
 
+![USDC Bridge](./graphs/usdcBridge.png)
+
 ```typescript
 async function bridgeBaseSepoliaUSDCToEthereumSepolia() {
   const evmSourceNetwork = LIT_EVM_CHAINS.baseSepolia;
@@ -374,3 +382,11 @@ async function bridgeBaseSepoliaUSDCToEthereumSepolia() {
 }
 bridgeBaseSepoliaUSDCToEthereumSepolia().catch(console.error);
 ```
+
+### Chain Signatures example
+
+With some minor modifications, the previous example can be adapted to listen transaction requests in a source chain and broadcast transactions in, another, destination chain.
+
+To see the example with the full implementation, check the [Chain Signatures example](https://github.com/LIT-Protocol/chain-signatures).
+
+This opens up a wide range of possibilities, such as cross-chain messaging, token swaps, gas sponsorship, offchain multisigs, and more.