创建 README_en.md

Author: RyouDYFZ

README_en.md

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+<image src="https://github.com/user-attachments/assets/563db63c-954f-4d47-839e-c475d88ab7fc" height="128"/>
+Language: <a href="./README.md">简体中文</a>｜English
+
+# USF - Universal Schedule Format
+
+USF (Universal Schedule Format) is an efficient curriculum data format, which aims to streamline efficiently and support the use of course names, teachers, classrooms, time periods and single and double weekly rules.
+
+## Features
+
+✅ Compact & Efficient: Reduce redundant fields compared with traditional formats
+
+✅ Simple & Convenient: Simple JSON structure, suitable for various applications
+
+✅ Support Week Rules: Weeks rules can be set for courses
+
+✅ Autocomplete: Automatic code complete can be turned on in VS Code and JetBrains IDEs
+
+## Format
+USF files are encoded in UTF-8 format.
+
+## Autocomplete
+### Visual Studio
+Install "JSON Schema" extension and import [Schema](https://raw.githubusercontent.com/USF-org/USF/refs/heads/main/usf.schema.json)
+### JetBrains
+Get from [JSON Schema Store](https://www.schemastore.org/json/) (`# $schema: USF`)