Update README_PYPI.md

Author: rybakov-ks

README_PYPI.md

@@ -1,7 +1,6 @@
 # ParticleAnalyzer
 
 [![Online Demo](https://img.shields.io/badge/DEMO-Available%20at%20particleanalyzer.ru-brightgreen)](https://particleanalyzer.ru/)
-[![Online Demo](https://img.shields.io/badge/DEMO-Available%20at%20sem.rybakov--k.ru-brightgreen)](https://sem.rybakov-k.ru/)
 
 
 <div align="left">