Add detailed plugin documentation for Cleanup, Cloudflare, Deny Pages, IP Whitelist, JWT Validator, and FastCGI plugins

- Added individual markdown files with examples, configuration options, and HAProxy outputs for each plugin.
- Updated `README.md` to link plugin-specific documentation.
- Enhanced `plugins.md` to summarize plugin features and usage.
- Included Docker, Kubernetes, Swarm, and static configuration examples for all plugins.

docs/plugins/cloudflare.md

@@ -0,0 +1,91 @@
+# Cloudflare Plugin
+
+**Type:** Domain Plugin
+**Runs:** Once for each discovered domain/host
+
+## Overview
+
+The Cloudflare plugin restores the original visitor IP address when requests come through Cloudflare's CDN.
+
+## Why Use It
+
+Cloudflare replaces the visitor's IP with its own. This plugin restores the original IP from the `CF-Connecting-IP` header.
+
+## Configuration Options
+
+| Option         | Description                | Default                           |
+|----------------|----------------------------|-----------------------------------|
+| `enabled`      | Enable/disable plugin      | `true`                            |
+| `ip_list_path` | Path to Cloudflare IP list | `/etc/haproxy/cloudflare_ips.lst` |
+
+## Configuration Examples
+
+### Docker/Docker Compose (Basic)
+
+```yaml
+services:
+  myapp:
+    labels:
+      easyhaproxy.http.host: example.com
+      easyhaproxy.http.plugins: cloudflare
+```
+
+### Docker/Docker Compose (Custom IP List Path)
+
+```yaml
+labels:
+  easyhaproxy.http.plugins: cloudflare
+  easyhaproxy.http.plugin.cloudflare.ip_list_path: /custom/path/cf_ips.lst
+```
+
+### Kubernetes Annotations
+
+```yaml
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  annotations:
+    easyhaproxy.plugins: "cloudflare"
+    easyhaproxy.plugin.cloudflare.ip_list_path: "/etc/haproxy/cloudflare_ips.lst"
+spec:
+  rules:
+    - host: example.com
+      http:
+        paths:
+          - path: /
+            backend:
+              service:
+                name: myapp
+                port:
+                  number: 80
+```
+
+### Static YAML Configuration
+
+```yaml
+# /etc/haproxy/static/config.yaml
+plugins:
+  config:
+    cloudflare:
+      enabled: true
+      ip_list_path: /etc/haproxy/cloudflare_ips.lst
+```
+
+## Generated HAProxy Configuration
+
+```haproxy
+# Cloudflare - Restore original visitor IP
+acl from_cloudflare src -f /etc/haproxy/cloudflare_ips.lst
+http-request set-header X-Forwarded-For %[req.hdr(CF-Connecting-IP)] if from_cloudflare
+```
+
+## Important Notes
+
+- **Required:** Download Cloudflare IP list from [Cloudflare documentation](https://support.cloudflare.com/hc/en-us/articles/200170786)
+- The plugin runs once per domain during the discovery cycle
+- Ensure the IP list file is mounted and accessible to HAProxy
+
+## Related Documentation
+
+- [Plugin System Overview](../plugins.md)
+- [Container Labels Reference](../container-labels.md)