chore: improve foundry-zksync installation (#18)

# What 💻 
* Simplified foundry-zksync installation and makes use of pre-compiled
binaries instead of source

# Why ✋
* Better experience 

# Evidence 📷
Include screenshots, screen recordings, or `console` output here
demonstrating that your changes work as intended

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<!-- # Notes 📝
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content/10.quick-start/00.index.md

@@ -95,14 +95,29 @@ allowing for the compilation, deployment, testing, and interaction with smart co
 yet and may not work as fully intended. It is open-sourced and contributions are welcome.
 ::
 
-Install `foundry-zksync` with the following command:
-<!-- TODO: @dutterbutter this should be a single curl command -->
-```bash
-# TODO: @dutterbutter this should be a single curl command without Rust requirements
-git clone [email protected]:matter-labs/foundry-zksync.git
-cd foundry-zksync
-cargo build --bin forge --bin cast --release
-```
+Quickly set up `foundry-zksync` by following these steps:
+
+1. **Clone the Repository**:
+   Download the latest version from GitHub:
+
+   ```bash
+   git clone [email protected]:matter-labs/foundry-zksync.git
+   cd foundry-zksync
+   ```
+
+2. **Prepare the Installation Script**:
+   Ensure the script is executable:
+
+   ```bash
+   chmod +x ./install-foundry-zksync
+   ```
+
+3. **Run the Installer**:
+   Execute the script to install the `foundry-zksync` binaries `forge` and `cast`:
+
+   ```bash
+   ./install-foundry-zksync
+   ```
 
 ---