Update version in README.md.

Author: terabytesoftw

README.md

@@ -33,13 +33,13 @@ The preferred way to install this extension is through [composer](https://getcom
 Either run
 
 ```shell
-composer require --prefer-dist ui-awesome/html-attribute:^0.1
+composer require --prefer-dist ui-awesome/html-attribute:^0.2
 ```
 
 or add
 
 ```json
-"ui-awesome/html-attribute": "^0.1"
+"ui-awesome/html-attribute": "^0.2"
 ```
 
 to the require section of your `composer.json` file.