docs: Add detailed installation guide and update READMEs with new CDN links.

Author: andreferra

README.md

@@ -20,14 +20,24 @@ A lightweight Docsify plugin that transforms standard markdown checkboxes into i
 
 **[View Full Documentation & Demo →](https://andreferra.github.io/docsify-plugin-interactive-checkboxes/)**
 
-## 🚀 Quick Start
+## 📦 Installation
 
-Add to your `index.html` before closing `</body>`:
+### NPM
+
+```bash
+npm install docsify-interactive-checkboxes
+```
+
+### CDN
+
+Add the script to your `index.html` after the Docsify script:
 
 ```html
-<script src="https://cdn.jsdelivr.net/gh/andreferra/docsify-plugin-interactive-checkboxes/src/plugin.js"></script>
+<script src="//cdn.jsdelivr.net/npm/docsify-interactive-checkboxes/dist/plugin.min.js"></script>
 ```
 
+
+
 ## 📝 Usage
 
 Standard markdown syntax:

docs/README.md

@@ -22,11 +22,11 @@ Try clicking these checkboxes - they'll save automatically!
 
 ## 📦 Installation
 
-Add the plugin to your `index.html` after Docsify:
+Please refer to the [Installation Guide](installation.md) for detailed instructions on using NPM or CDN.
 
 ```html
-<!-- Interactive Checkboxes Plugin -->
-<script src="https://cdn.jsdelivr.net/gh/andreferra/docsify-plugin-interactive-checkboxes/src/plugin.js"></script>
+<!-- Quick CDN link -->
+<script src="//cdn.jsdelivr.net/npm/docsify-interactive-checkboxes/dist/plugin.min.js"></script>
 ```
 
 ## 🎨 Styling

docs/_sidebar.md

@@ -1,4 +1,5 @@
 - [Home](/)
+- [Installation](installation.md)
 - [Demo](demo.md)
 - [Configuration](configuration.md)
 - [GitHub](https://github.com/andreferra/docsify-plugin-interactive-checkboxes)

docs/installation.md

@@ -0,0 +1,34 @@
+# 📦 Installation
+
+There are two ways to install the Interactive Checkboxes plugin: via NPM or using a CDN.
+
+## Option 1: NPM (Recommended for Bundlers)
+
+If you are using a bundler or a Node.js-based setup, you can install the package via npm.
+
+```bash
+npm install docsify-interactive-checkboxes
+```
+
+Then, import it in your main script file if your setup supports it, or reference the file from `node_modules`.
+
+## Option 2: CDN (Easiest)
+
+For most Docsify sites, you can simply add the script tag to your `index.html`. This requires no build step.
+
+Add the following script **after** the main Docsify script:
+
+```html
+<!-- specific version (recommended for production) -->
+<script src="//cdn.jsdelivr.net/npm/docsify-interactive-checkboxes@2/dist/plugin.min.js"></script>
+
+<!-- OR latest version -->
+<script src="//cdn.jsdelivr.net/npm/docsify-interactive-checkboxes/dist/plugin.min.js"></script>
+```
+
+### Development Version
+If you want to use the latest unstable changes from the main branch (not recommended for production):
+
+```html
+<script src="https://cdn.jsdelivr.net/gh/andreferra/docsify-plugin-interactive-checkboxes/src/plugin.js"></script>
+```