chore: tweak description (#8509)

README.md

@@ -13,7 +13,7 @@
 
 <h2 align="center">Supporting Vue.js</h2>
 
-Vue.js is an MIT-licensed open source project. It's an independent project with its ongoing development made possible entirely thanks to the support by these awesome [backers](https://github.com/vuejs/vue/blob/dev/BACKERS.md). If you'd like to join them, please consider:
+Vue.js is an MIT-licensed open source project with its ongoing development made possible entirely by the support of these awesome [backers](https://github.com/vuejs/vue/blob/dev/BACKERS.md). If you'd like to join them, please consider:
 
 - [Become a backer or sponsor on Patreon](https://www.patreon.com/evanyou).
 - [Become a backer or sponsor on Open Collective](https://opencollective.com/vuejs).