Update README.md

README.md

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 # academic-homepage
 
+[![pages-build-deployment](https://github.com/luost26/academic-homepage/actions/workflows/pages/pages-build-deployment/badge.svg)](https://github.com/luost26/academic-homepage/actions/workflows/pages/pages-build-deployment)
+[![W3C Validation](https://img.shields.io/w3c-validation/html?targetUrl=https%3A%2F%2Fluost26.github.io%2Facademic-homepage)](https://validator.nu/?doc=https%3A%2F%2Fluost26.github.io%2Facademic-homepage)
 [![Hits](https://hits.seeyoufarm.com/api/count/incr/badge.svg?url=https%3A%2F%2Fgithub.com%2Fluost26%2Facademic-homepage&count_bg=%2379C83D&title_bg=%23555555&icon=&icon_color=%23E7E7E7&title=hits&edge_flat=false)](https://hits.seeyoufarm.com)
 
 This is a GitHub Pages template for personal academic homepages. The template is based on [the creator's homepage](https://luost.me).