Update README.md (#1341)

* Update README.md

加入简体中文翻译

* Update README.md

Co-authored-by: Nikita Prokopov <niki@tonsky.me>

README.md

@@ -2,6 +2,8 @@
 
 ![Fira Code](./extras/logo.svg)
 
+Read in [English](./README.md) | [简体中文](./README_CN.md)
+
 ### Problem
 
 Programmers use a lot of symbols, often encoded with several characters. For the human brain, sequences like `->`, `<=` or `:=` are single logical tokens, even if they take two or three characters on the screen. Your eye spends a non-zero amount of energy to scan, parse and join multiple characters into a single logical one. Ideally, all programming languages should be designed with full-fledged Unicode symbols for operators, but that’s not the case yet.