Clarify gateway examples

docs/pages/fund-agents-apps/run-gateway.mdx

@@ -94,20 +94,9 @@ Every app and agent needs an XMTP Gateway Service.
 
 ### For browser and mobile client apps
 
-You must run the XMTP Gateway Service written in Go. Choose the option that works best for you:
+Use the [example gateway service repository](https://github.com/xmtp/gateway-service-example) as a starting point to build your own custom gateway with authentication
 
-**Option 1: Basic Docker image** (No Go knowledge required)
-
-- XMTP provides a Docker image that works out of the box
-- Authorizes all requests (add authentication for production)
-- Suitable for testing
-
-**Option 2: Custom implementation** (Go knowledge required)
-
-- Start with XMTP's Go implementation
-- Add your own authentication logic
-- Implement custom rate limiting
-- Required for apps with authentication needs
+For detailed implementation steps, see [Deploy your XMTP Gateway Service](#deploy-your-xmtp-gateway-service).
 
 ### For agents and Node.js apps
 
@@ -275,7 +264,7 @@ This identity will then be used for rate limiting, and will be passed to your `A
 
 :::code-group
 
-```go [IP Address]
+```go [IP address]
 //  We provide a simple implementation that uses the client's IP address to identify users. For a production application, you should limit requests to only users actually authenticated in your application.
 package main
 
@@ -393,7 +382,7 @@ func main() {
 
 ```
 
-```go [Rate Limiting]
+```go [Rate limiting]
 package main
 
 import (
@@ -478,22 +467,39 @@ func main() {
 
 ## Deploy your XMTP Gateway Service
 
-Deploy the XMTP Gateway Service on your infrastructure of choice, such as a container hosting service ($25-50/month minimum).
+:::tip[Example repo]
 
-We provide a Docker image that corresponds to the bare bones example above that you can run with the appropriate environment variables set in any hosting provider that supports Docker.
+You can start with the [example gateway service repository](https://github.com/xmtp/gateway-service-example).
 
-```bash [Bash]
-docker run -p 5050:5050 -p 5055:5055 -e XMTPD_PAYER_PRIVATE_KEY=... xmtp/xmtpd-gateway:main
-```
+:::
 
-Most production apps will require some level of customization to authorize user requests. You can fork our [example repository](https://github.com/xmtp/gateway-service-example), which includes a Dockerfile and a sample configuration.
+1. Fork or clone the repository.
+2. Add your own authentication logic.
+3. Configure your rate limits
+4. Deploy your custom image on your infrastructure of choice, such as a container hosting service ($25-50/month minimum).
+
+#### Additional recommendations
 
 The system is able to run without any external dependencies, but we recommend configuring a Redis instance to use for nonce management and rate limiting.
 
 If your XMTP Gateway Service goes down, messages will queue until it comes back online. Build redundancy, if needed.
 
 ## Test your XMTP Gateway Service
 
+You can use the prebuilt Docker image for local development and testing:
+
+```bash [Bash]
+docker run -p 5050:5050 -p 5055:5055 -e XMTPD_PAYER_PRIVATE_KEY=... xmtp/xmtpd-gateway:main
+```
+
+:::warning
+
+This pre-built image authorizes all requests without authentication. Never use it in production.
+
+:::
+
+### Test scenarios
+
 Here are some high priority scenarios to test:
 
 - Deploy and test XMTP Gateway Service