[Magic Firewall] MFW-64: Add skip example (#447)

* [Magic Firewall] MFW-64: Add skip example

* Update examples.md

* tcp.port should be tcp.dstport

* Minor fixes to request

Author: randomkny

products/magic-transit/src/content/magic-firewall/examples.md

@@ -0,0 +1,37 @@
+---
+title: Examples
+order:  5
+---
+
+# Examples
+
+## Skip Action
+
+The example below blocks all tcp ports, but allows one port (8080)
+by using the skip action.
+
+```
+curl -X POST https://api.cloudflare.com/client/v4/accounts/${account_id}/rulesets \
+-H 'Content-Type: application/json' \
+-H 'X-Auth-Email: [email protected]' \
+-H 'X-Auth-Key: 00000000000' \
+--data '{
+    "name": "Example ruleset",
+    "kind": "root",
+    "phase": "magic_transit",
+    "description": "Example ruleset description",
+    "rules": [
+      {
+        "action": "skip",
+        "action_parameters": { "ruleset": "current" },
+        "expression": "tcp.dstport in { 8080 } ",
+        "description": "Allow port 8080"
+      },
+      {
+        "action": "block",
+        "expression": "tcp.dstport in { 1..65535 }",
+        "description": "Block all tcp ports"
+      }
+    ]
+}'
+```