Refactor plugin configuration examples and improve formatting in documentation

- Replaced `config.yml` with modular configuration examples: `config-basic.yml`, `config-certbot.yml`, `config-deny-pages.yml`, and `config-jwt-validator.yml`.
- Improved examples with detailed usage instructions, prerequisites, and testing steps for each configuration.
- Fixed indentation and formatting inconsistencies across plugin files and HAProxy configuration generation.
- Streamlined README comparison table for static vs. dynamic discovery.
- Updated `docker-compose-jwt-validator.yml` to correct audience key formatting.

examples/static/conf/config-deny-pages.yml

@@ -0,0 +1,78 @@
+# Deny Pages Plugin Configuration Example
+#
+# Demonstrates:
+# - Global plugin configuration (applies to all domains)
+# - Per-domain plugin override (custom settings per host)
+#
+# To use:
+# 1. Update container names and ports
+# 2. Mount this config: -v ./conf/config-deny-pages.yml:/etc/haproxy/static/config.yml
+# 3. Test blocked paths:
+#    curl http://host1.local/admin        # Should return 404
+#    curl http://host2.local/wp-admin     # Should return 403 (different config)
+
+stats:
+  username: admin
+  password: password
+  port: 1936
+
+customerrors: true
+
+# Global plugin configuration
+# This applies to ALL domains unless overridden
+plugins:
+  enabled:
+    - deny_pages
+
+  config:
+    deny_pages:
+      # Global default: block common admin paths with 404
+      paths:
+        - /admin
+        - /.env
+        - /config
+      status_code: 404  # Hide existence of these paths
+
+easymapping:
+  - port: 80
+    hosts:
+      # Domain 1: Uses global deny_pages configuration
+      host1.local:
+        containers:
+          - webapp1:8080
+        # No plugins specified = uses global configuration
+
+      # Domain 2: WordPress site with custom blocked paths
+      host2.local:
+        containers:
+          - wordpress:80
+        # Override global plugin configuration for this domain
+        plugins:
+          - deny_pages
+        plugin_config:
+          deny_pages:
+            paths:
+              - /wp-admin
+              - /wp-login.php
+              - /xmlrpc.php
+              - /wp-config.php
+            status_code: 403  # Return forbidden instead of 404
+
+      # Domain 3: Public site with stricter blocking
+      host3.local:
+        containers:
+          - publicsite:3000
+        plugins:
+          - deny_pages
+        plugin_config:
+          deny_pages:
+            paths:
+              - /admin
+              - /administrator
+              - /manager
+              - /phpmyadmin
+              - /.git
+              - /.env
+              - /config
+              - /backup
+            status_code: 404