Add docs

Author: Ilan

book/src/SUMMARY.md

@@ -44,6 +44,7 @@
       - [Aptos](framework/components/blockchains/aptos.md)
       - [Sui](framework/components/blockchains/sui.md)
       - [TRON](framework/components/blockchains/tron.md)
+      - [ZKSync](framework/components/blockchains/zksync.md)
       - [Optimism Stack]()
       - [Arbitrum Stack]()
     - [Chainlink](framework/components/chainlink.md)

book/src/framework/components/blockchains/zksync.md

@@ -0,0 +1,22 @@
+# ZKSync clients
+
+We support [Anvil ZKSync](https://foundry-book.zksync.io/anvil-zksync/) memory blockchain in a Docker image.
+It is a fork of [Anvil](https://book.getfoundry.sh/anvil/) with support for ZK Sync transactions and ZK VM.
+
+Components are managed as [EVM](./evm) components.
+
+> The component will create a temporary Dockerfile that pulls the Anvil ZKSync executables from https://raw.githubusercontent.com/matter-labs/foundry-zksync/main/install-foundry-zksync
+> as per ZK Sync documentation.
+
+## Configuration
+
+Use `type: 'anvil-zksync'` to use Anvil ZKSync.
+
+The configurable arguments are two:
+
+- `chain_id`, defaults to `"260"`
+- `port`, defaults to `"8011"`
+
+## Test Private Keys
+
+Testing keys are exported in the `blockchain` go module under `AnvilZKSyncRichAccountPks`.