Update README.md

Author: PanJiaChen

README.md

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 This is a vue electron admin project base on  [vueAdmin-template](https://github.com/PanJiaChen/vueAdmin-template) , and was generated from [electron-vue](https://github.com/SimulatedGREG/electron-vue) using [vue-cli](https://github.com/vuejs/vue-cli). Documentation about this project can be found [here](https://simulatedgreg.gitbooks.io/electron-vue/content/index.html).
 
-<a target='_blank' rel='nofollow' href='https://app.codesponsor.io/link/vMACqConzRGb2TuXvYSosXpP/PanJiaChen/electron-vue-admin'>
-  <img alt='Sponsor' width='888' height='68' src='https://app.codesponsor.io/embed/vMACqConzRGb2TuXvYSosXpP/PanJiaChen/electron-vue-admin.svg' />
-</a>
-
 ## Build Setup
 
 ``` bash