feat: add marketplace support and improve installation guide

.claude-plugin/marketplace.json

@@ -0,0 +1,20 @@
+{
+  "name": "deployshield",
+  "description": "Production safety guardrails for Claude Code",
+  "owner": {
+    "name": "Matan Ryngler",
+    "url": "https://github.com/matanryngler"
+  },
+  "plugins": [
+    {
+      "name": "deployshield",
+      "description": "Production safety guardrails that block write/mutating operations on cloud, database, IaC, and deployment CLIs.",
+      "version": "1.1.0",
+      "source": "./",
+      "author": {
+        "name": "Matan Ryngler",
+        "url": "https://github.com/matanryngler"
+      }
+    }
+  ]
+}

README.md

@@ -73,15 +73,16 @@ DeployShield uses a quote-aware parser that correctly handles:
 
 ## Installation
 
-### As a plugin directory
+### Via Plugin Marketplace (recommended)
+
+Register the marketplace and install:
 
 ```bash
-claude --plugin-dir /path/to/deployshield
+claude plugin marketplace add matanryngler/deployshield
+claude plugin install deployshield@deployshield
 ```
 
-### In your project
-
-Clone or copy into your project and reference it:
+### Manual
 
 ```bash
 git clone https://github.com/matanryngler/deployshield.git
@@ -90,13 +91,12 @@ claude --plugin-dir ./deployshield
 
 ### Verify it's working
 
-Launch with debug mode to confirm hooks are registered:
+Start a new Claude Code session and try a write command — it should be blocked:
 
-```bash
-claude --plugin-dir /path/to/deployshield --debug
 ```
-
-You should see DeployShield's SessionStart hook fire, and any write commands will be blocked with a clear message.
+> kubectl delete pod my-pod
+# => Blocked: kubectl 'delete' is not in the safe-list for kubernetes
+```
 
 ## Project Structure
 

release-please-config.json

@@ -8,6 +8,11 @@
           "type": "json",
           "path": ".claude-plugin/plugin.json",
           "jsonpath": "$.version"
+        },
+        {
+          "type": "json",
+          "path": ".claude-plugin/marketplace.json",
+          "jsonpath": "$.plugins[0].version"
         }
       ]
     }