Fix README.md file

Author: VMironiuk

README.md

@@ -1,4 +1,4 @@
-# BeChatted-Client 
+# Be Chatted iOS/macOS app
 [![CI-macOS](https://github.com/VMironiuk/BeChatted-Client/actions/workflows/CI_macOS.yml/badge.svg)](https://github.com/VMironiuk/BeChatted-Client/actions/workflows/CI_macOS.yml)
 
-Welcome to the BeChatted App wiki!
+Welcome to Be Chatted iOS/macOS app repository!