update qiyu's information

.gitignore

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 public/
 .DS_Store
+.idea

content/authors/qiyu-zhuang/_index.md

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+---
+# Display name
+title: Qiyu Zhuang
+
+# Is this the primary user of the site?
+superuser: false
+
+# Role/position
+role: Visiting Student
+
+# Organizations/Affiliations
+organizations:
+- name: National University of Singapore
+url: ""
+
+# Short bio (displayed in user profile at end of posts)
+bio: Qiyu is a visiting scholar in TEST Lab.
+
+interests:
+#- Programming Languages
+#- Compilers
+#- High performance computing
+#- Program Analysis
+
+#education:
+#  courses:
+#  - course: Undergraduate
+#    institution: University of Moratuwa
+#    year: 2020-2024
+
+# Social/Academic Networking
+# For available icons, see: https://sourcethemes.com/academic/docs/page-builder/#icons
+#   For an email link, use "fas" icon pack, "envelope" icon, and a link in the
+#   form "mailto:your-email@example.com" or "#contact" for contact widget.
+social:
+- icon: envelope
+  icon_pack: fas
+#    link: "mailto:t0935500@u.nus.edu"
+- icon: github
+  icon_pack: fab
+  link: https://github.com/QiYuZhuang
+# Link to a PDF of your resume/CV from the About widget.
+# To enable, copy your resume/CV to `static/files/cv.pdf` and uncomment the lines below.
+# - icon: cv
+#   icon_pack: ai
+#   link: files/cv.pdf
+
+# Enter email to display Gravatar (if Gravatar enabled in Config)
+email: ""
+
+# Highlight the author in author lists? (true/false)
+highlight_name: true
+
+# Organizational groups that you belong to (for People widget)
+#   Set this to `[]` or comment out if you are not using People widget.
+user_groups:
+- Student Collaborators
+---
+
+Qiyu was a Ph.D. student at [DEKE](https://deke.ruc.edu.cn) at Renmin University of China, focusing on database system, database middleware, and isolation level.
+
+Find more information about Qiyu at [https://qiyuzhuang.github.io/](https://qiyuzhuang.github.io/).