docs: add install via CDN guide (#8)

* docs: add install via CDN guide

* docs: apply code review (ref #8)

README.md

@@ -13,6 +13,7 @@
 * [Examples](#-examples)
 * [Install](#-install)
     * [Via Package Manager](#via-package-manager)
+    * [Via Contents Delivery Network (CDN)](#via-contents-delivery-network-cdn)
     * [Download Source Files](#download-source-files)
 * [Usage](#-usage)
     * [HTML](#html)
@@ -28,9 +29,9 @@
 
 
 ## 🌏 Browser Support
-| <img src="https://user-images.githubusercontent.com/1215767/34348387-a2e64588-ea4d-11e7-8267-a43365103afe.png" alt="Chrome" width="16px" height="16px" /> Chrome | <img src="https://user-images.githubusercontent.com/1215767/34348383-9e7ed492-ea4d-11e7-910c-03b39d52f496.png" alt="Firefox" width="16px" height="16px" /> Firefox | <img src="https://user-images.githubusercontent.com/1215767/34348394-a981f892-ea4d-11e7-9156-d128d58386b9.png" alt="Safari" width="16px" height="16px" /> Safari | <img src="https://user-images.githubusercontent.com/1215767/34348380-93e77ae8-ea4d-11e7-8696-9a989ddbbbf5.png" alt="Edge" width="16px" height="16px" /> Edge | <img src="https://user-images.githubusercontent.com/1215767/34348590-250b3ca2-ea4f-11e7-9efb-da953359321f.png" alt="IE" width="16px" height="16px" /> Internet Explorer |
+| <img src="https://user-images.githubusercontent.com/1215767/34348387-a2e64588-ea4d-11e7-8267-a43365103afe.png" alt="Chrome" width="16px" height="16px" /> Chrome | <img src="https://user-images.githubusercontent.com/1215767/34348590-250b3ca2-ea4f-11e7-9efb-da953359321f.png" alt="IE" width="16px" height="16px" /> Internet Explorer | <img src="https://user-images.githubusercontent.com/1215767/34348380-93e77ae8-ea4d-11e7-8696-9a989ddbbbf5.png" alt="Edge" width="16px" height="16px" /> Edge | <img src="https://user-images.githubusercontent.com/1215767/34348394-a981f892-ea4d-11e7-9156-d128d58386b9.png" alt="Safari" width="16px" height="16px" /> Safari | <img src="https://user-images.githubusercontent.com/1215767/34348383-9e7ed492-ea4d-11e7-910c-03b39d52f496.png" alt="Firefox" width="16px" height="16px" /> Firefox |
 | :---------: | :---------: | :---------: | :---------: | :---------: |
-| Yes | Yes | Yes | Yes | [[8+]] |
+| Yes | 8+ | Yes | Yes | Yes |
 
 
 ## 🎨 Features
@@ -68,6 +69,30 @@ $ bower install tui-color-picker # Latest version
 $ bower install tui-color-picker#<tag> # Specific version
 ```
 
+### Via Contents Delivery Network (CDN)
+TOAST UI products are available over the CDN powered by [TOAST Cloud](https://www.toast.com).
+
+You can use the CDN as below.
+
+```html
+<script src="https://uicdn.toast.com/tui-color-picker/latest/tui-color-picker.js"></script>
+<link rel="stylesheet" type="text/css" href="https://uicdn.toast.com/tui-color-picker/latest/tui-color-picker.css">
+```
+
+If you want to use a specific version, use the tag name instead of `latest` in the url's path.
+
+The CDN directory has the following structure.
+
+```
+tui-color-picker/
+├─ latest/
+│  ├─ tui-color-picker.js
+│  ├─ tui-color-picker.min.js
+│  └─ tui-color-picker.css
+├─ v2.1.0/
+│  ├─ ...
+```
+
 ### Download Source Files
 * [Download bundle files](https://github.com/nhnent/tui.color-picker/tree/production/dist)
 * [Download all sources for each version](https://github.com/nhnent/tui.color-picker/releases)