add strikingly to readme

README.md

@@ -13,6 +13,12 @@
 
 Vue.js is an MIT-licensed open source project. Its ongoing development is made possible thanks to the support by these awesome [backers](https://github.com/vuejs/vue/blob/dev/backers.md). If you'd like to join them, check out [Vue.js' Patreon campaign](https://www.patreon.com/evanyou).
 
+Special thanks to the generous sponsorship by:<span>
+
+<a href="https://strikingly.com">
+  <img width="300px" src="http://res.cloudinary.com/hrscywv4p/image/upload/c_limit,f_auto,h_1440,q_90,w_720/strikingly-logo-01_mhnp2b.png">
+</a>
+
 ## Intro
 
 Vue.js is a library for building interactive web interfaces. It provides data-reactive components with a simple and flexible API. Core features include: