Update about.md

Author: ExAndroidDev

about.md

@@ -13,4 +13,4 @@ Always discovering new payload delivery techniques.
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 Get in touch with me at [@exandroiddev](https://twitter.com/exandroiddev){:target="_blank"}
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-Hire me for a [penetration test](https://pentestwizard.com/)
+Hire me for a [penetration test](https://pentestking.com/)