Update version

Author: yauhenipakala

README.md

@@ -21,11 +21,11 @@ npm install highlightjs-line-numbers.js
 #### Getting the library from CDN
 
 ```html
-<script src="//cdnjs.cloudflare.com/ajax/libs/highlightjs-line-numbers.js/2.7.0/highlightjs-line-numbers.min.js"></script>
+<script src="//cdnjs.cloudflare.com/ajax/libs/highlightjs-line-numbers.js/2.8.0/highlightjs-line-numbers.min.js"></script>
 ```
 
 ```html
-<script src="//cdn.jsdelivr.net/npm/highlightjs-line-numbers.js@2.7.0/dist/highlightjs-line-numbers.min.js"></script>
+<script src="//cdn.jsdelivr.net/npm/highlightjs-line-numbers.js@2.8.0/dist/highlightjs-line-numbers.min.js"></script>
 ```
 
 ## Usage

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "highlightjs-line-numbers.js",
-  "version": "2.7.0",
+  "version": "2.8.0",
   "homepage": "https://github.com/wcoder/highlightjs-line-numbers.js",
   "authors": [
     "Yauheni Pakala <[email protected]>"