feat(wordpress): add WordPress plugin to marketplace (#137)

* feat(wordpress): add WordPress plugin to marketplace

Add WordPress plugin with expert-level knowledge for blocks, themes,
plugins, and best practices. Includes marketplace registration,
README documentation, and release-please configuration.

* docs: add wordpress plugin to manual installation list

The Available Plugins section added the WordPress plugin but the manual
installation code block was not updated to include it, making the bulk
install guidance inconsistent.

Author: amondnet

.claude-plugin/marketplace.json

@@ -487,6 +487,14 @@
       "keywords": ["please-plugins", "discovery", "marketplace", "auto-detect", "setup"],
       "tags": ["tooling", "discovery"],
       "source": "./plugins/please-plugins"
+    },
+    {
+      "name": "wordpress",
+      "description": "Expert-level WordPress knowledge for AI coding assistants — blocks, themes, plugins, and best practices",
+      "category": "framework",
+      "keywords": ["wordpress", "blocks", "themes", "plugins", "gutenberg", "php"],
+      "tags": ["framework", "cms"],
+      "source": "./plugins/wordpress"
     }
   ]
 }

README.md

@@ -237,6 +237,11 @@ Write beautiful documentations with Nuxt and Markdown.
 
 **Install:** `/plugin install docus@pleaseai` | **Source:** [plugins/docus](https://github.com/pleaseai/claude-code-plugins/tree/main/plugins/docus)
 
+#### WordPress
+Expert-level WordPress knowledge for AI coding assistants — blocks, themes, plugins, and best practices.
+
+**Install:** `/plugin install wordpress@pleaseai` | **Source:** [plugins/wordpress](https://github.com/pleaseai/claude-code-plugins/tree/main/plugins/wordpress)
+
 ## Quick Start
 
 The fastest way to get started — install the marketplace and let the plugin recommender auto-detect what you need:
@@ -314,6 +319,7 @@ Once the marketplace is added, install any plugin individually:
 /plugin install markitdown@pleaseai
 /plugin install chat-sdk@pleaseai
 /plugin install docus@pleaseai
+/plugin install wordpress@pleaseai
 ```
 
 ## What Are Claude Code Plugins?