docs: update operator deployment

docs/monitoring/distrubuted-intance.md

@@ -0,0 +1,33 @@
+---
+title: Distributed instances
+layout: default
+parent: Monitoring and Performance
+nav_order: 4
+---
+
+
+# Distributed instances
+
+Goma Gateway includes built-in support for Redis-based rate limiting, enabling efficient and scalable deployments.
+
+By leveraging Redis, the Gateway ensures high-performance request throttling and distributed rate limiting across multiple instances, making it ideal for modern, cloud-native architectures.
+
+```yaml
+version: "1.0"
+gateway:
+  tlsCertFile: cert.pem
+  tlsKeyFile: key.pem
+  writeTimeout: 15
+  readTimeout: 15
+  idleTimeout: 30
+  rateLimit: 60 # peer minute
+  blockCommonExploits: false
+  accessLog: /dev/Stdout
+  errorLog: /dev/stderr
+  logLevel: ''
+  ## Redis connexion for distributed rate limiting; when using multiple instances | It's optional
+  redis:
+    addr: redis:6379
+    password: password
+```
+