Merge branch 'master' of github.com:nju-lug/NJUThesisUndergraduate

README.md

-# NJU Thesis Undergraduate
+# NJU Thesis
 
 [![njuthesis](https://img.shields.io/badge/njuthesis-latex-blue)](https://git.nju.edu.cn/nju-lug/nju-latex-templates)
 [![overleaf](https://img.shields.io/badge/overleaf-supported-brightgreen)](https://tex.nju.edu.cn)