Update README.md

[SamuelGong]

Dear @lokinko,

This is Zhifeng Jiang, a Ph.D. student from HKUST. I found your repo informative. It is a refreshing and comprehensive guideline for FL researchers and practitioners.

In this pull request, I

• Added my recently accepted survey to Part 2.
• Corrected the translation for The Hong Kong University of Science and Technology (HKUST) from "香港理工大学“ to "香港科技大学“ in Part 15. (Please note that “香港理工大学” is The Hong Kong Polytechnic University (PolyU))
• Added my recently accepted research work Pisces under Part 15 (Pisces is a system-level optimization work that proposes an asynchronous FL system for accelerated training, but I could not find another part other than Part 15 that Pisces can fit more).

I would be grateful if you could merge this pull request! Please let me know if you have any problems.

Regards,
Zhifeng