udpate readme.md

Readme.md

@@ -9,11 +9,11 @@ Practice Rust with easy to hard examples, exercises and small projects.
   
 ## Why another?
 
-[Rustlings](https://github.com/rust-lang/rustlings) and [Rust By Example](https://github.com/rust-lang/rust-by-example) are absolutely very nice, but Rust By Practice provides a little more:  
+[Rustlings](https://github.com/rust-lang/rustlings) and [Rust By Example](https://github.com/rust-lang/rust-by-example) are absolutely very nice, but we provides a little more:  
 
 1. We have more exercises of which the difficulty is from easy to hard
 
-2. Covers more topics in Rust, such as **async/await, threads, sync primitives and stand libraries** etc
+2. Covers more topics in Rust, such as **async/await, threads, sync primitives, optimizing and stand libraries** etc
    
 3. Learning from small projects, for pratice
    
@@ -23,7 +23,7 @@ Practice Rust with easy to hard examples, exercises and small projects.
 
 - You can edit and run the exercises online
   
-- **The goal is to make each exercise comipile with NO ERRORS!**
+- **The goal is to make each exercise comipile with NO ERRORS and Panics !**
   
 - Difficulty level: easy: 🌟  medium: 🌟🌟 hard: 🌟🌟🌟  hell: 🌟🌟🌟🌟
 
@@ -33,3 +33,6 @@ Practice Rust with easy to hard examples, exercises and small projects.
 All kinds of contributions are welcomed, such as exercise proposing, typo and bug fixing.
 
 
+## Buy me a ... 🌟?
+
+Fo us, a github star will be better than a cup coffee, and it only costs you 0 cents :)

en/src/why-exercise.md

@@ -1,48 +1,38 @@
 # Rust By Practice
 
-> 中文版[传送门](https://zh.practice.rs)
+Practice Rust with easy to hard examples, exercises and small projects.
 
-- Online Reading: [https://practice.rs](https://practice.rs)
+## Read it online
 
-Greetings and welcome here， if you have the following problems: 
+- [English](https://practice.rs)
+- [Chinsese](https://zh.practice.rs)
+  
+## Why another?
 
-- You have learned basics of Rust, and want to learn more, e.g do some exercises, but found easy ones
+[Rustlings](https://github.com/rust-lang/rustlings) and [Rust By Example](https://github.com/rust-lang/rust-by-example) are absolutely very nice, but we provides a little more:  
-- Practice Rust toolchains, std, ascyn/.await and more
-- Have no idea of what to do next, maybe you tried writing a demo /project, but... not that good or even worse: failed
 
-Maybe you have come to the right place. Here are lots of easy to hard exercises and practices to improve your Rust skills which cover almost every topic in Rust.
+1. We have more exercises of which the difficulty is from easy to hard
 
-In a word, this book will try to help you filling the gap between easy-to-learn and hard-to-use.
+2. Covers more topics in Rust, such as **async/await, threads, sync primitives, optimizing and stand libraries** etc
+   
+3. Learning from small projects, for pratice
+   
+4. Both English and Chinese are supported
 
 ## How to use
-- You can edit exercises online and also run it online
+
-- **Your only goal is make every exercise comipile with NO ERRORS!**
+- You can edit and run the exercises online
-- difficulty level: easy: 🌟  medium: 🌟🌟 hard: 🌟🌟🌟  hell: 🌟🌟🌟🌟
+  
+- **The goal is to make each exercise comipile with NO ERRORS and Panics !**
+  
+- Difficulty level: easy: 🌟  medium: 🌟🌟 hard: 🌟🌟🌟  hell: 🌟🌟🌟🌟
 
 
 ## Contributing
-We welcome all kinds of contributors.
 
-Every exercise you have contributed will be annotated with your github name and personal link, it's time to show yourself to the world!
+All kinds of contributions are welcomed, such as exercise proposing, typo and bug fixing.
-
-## Learning Rust
-If you are a first-time Rust learner, here are some high quality learning resources :
-- [The Book](https://doc.rust-lang.org/book/index.html) for English  speakers
-- [Rust语言圣经(The Course)](https://course.rs) for Chinese speakers, it covers nearly all the topics in Rust
-
-
-## difference to rustlings
-[Rustlings](https://github.com/rust-lang/rustlings) only contains small and easy exercises for junior rust devs. There is a big gap between learning Rust and using it in your projects.
-
-Another limit for rustlings is that you have to download rustlings to local machine and compile it first before starting to learn.
-
-## difference to rust by example
-[Rust By Example](https://doc.rust-lang.org/stable/rust-by-example/) is an excellent online book for learning Rust，`practice.rs` has some small advantages in :
-
-- more topics and exercises，specially for the hard part of Rust，e.g string, lifetime, smart pointers, threads and async/.await etc
-- difficulty from easy to hard，it will minimize the gap between learning and using in projects
-- up-to-date, e.g features which added in Rust 1.59 also have the corresponding exercises in `practice.rs`
-- real practices
 
 
+## Buy me a ... 🌟?
 
+Fo us, a github star will be better than a cup coffee, and it only costs you 0 cents :)

zh-CN/Readme.md

@@ -1,41 +0,0 @@
-# Rust By Practice
-- English: [https://practice.rs](https://practice.rs)
-- 简体中文: [https://zh.practice.rs](https://zh.practice.rs)
-
-欢迎大家来到 `practice.rs`，在来到这里之前不知道你有没有碰到过以下问题:
-
-- 学完知识，想要针对性的练习，但是只能找到一些不痛不痒的习题
-- 一些 Rust 工具、标准库等相关的习题更是一个都找不到
-- 做完了习题还是一片茫然，不知道下一步该做什么，上手写项目吧，发现几乎无处下手
-
-如果你曾经和我有一样的问题，那来到这里就对了：**在这里你能找到大量从简单到困难的 Rust 练习题，不仅能针对性巩固你所学过的知识，解决 Rust 语言难以上手应用的问题**。
-
-## 关于练习题的说明
-- 一切都在线化： 阅读、编辑和测试代码，当然还包括错误提示
--  每一道练习题都只有一个目的：那就是让编译通过，但是你需要注意相应的提示，例如删除所有代码也可以让练习通过
-- 难度等级: 简单: 🌟  中等: 🌟🌟  困难: 🌟🌟🌟  地狱: 🌟🌟🌟🌟
-
-## 欢迎你，贡献者
-本项目欢迎一切贡献者，特别是怀揣题库的兄弟，你所贡献的每一道题都会注明你的昵称和个人链接，是时候让全世界看看咱的风采了。
-
-## 学习 Rust 语言
-我们强烈推荐在开始做练习之前，先看看 [<<Rust语言圣经>>]((https://course.rs)) 这本书，它覆盖了从入门到精通所需的全部知识，相信我，里面绝对有你所需要的 Rust 知识。
-
-(悄咪咪的告诉咱中国用户， `practice.rs` 章节目录和 <<Rust语言圣经>> 完全相同，大家猜猜为什么)
-
-
-
-
-## 对比 rustlings
-[Rustlings](https://github.com/rust-lang/rustlings) 只包含了一些小型的、简单的练习题，说实话并不能帮你熟悉学到的 Rust 知识，更别提帮你打通从学习到实践的道路了。
-
-另一个问题就是 rustlings 需要先下载到本地，然后编译运行，无法在线使用。
-
-## 对比 Rust By Example
-[Rust By Example](https://doc.rust-lang.org/stable/rust-by-example/) 是相当不错的在线练习题，相比之前，`practice.rs` 拥有以下优势 :
-
-- 内容覆盖面更广，且练习题更多、针对性更强，充分满足大家做题的快乐
-- 难度从简单到困难都有，且更贴合实际
-- 跟随 Rust 版本实时更新,
-- `course.rs` 和 `practice.rs` 看域名就知道，它非常有信心才敢使用这两个针对性如此之强的域名，而信心来源于**高质量**
-- 实践应用

zh-CN/src/why-exercise.md

@@ -1,48 +1,44 @@
 # Rust By Practice
-> 英文版 [传送门](https://practice.rs)
+通过简单到困难的示例、练习及小型项目来练习和实践 Rust。
-
-欢迎大家来到 `practice.rs`，在来到这里之前不知道你有没有碰到过以下问题:
-
-- 学完知识，想要针对性的练习，但是只能找到一些不痛不痒的习题
-- 一些 Rust 工具、标准库等相关的习题更是一个都找不到
-- 做完了习题还是一片茫然，不知道下一步该做什么，上手写项目吧，发现几乎无处下手
-
-如果你曾经和我有一样的问题，那来到这里就对了：**在这里你能找到大量从简单到困难的 Rust 练习题，不仅能针对性巩固你所学过的知识，解决 Rust 语言难以上手应用的问题**。
 
 ## 在线阅读
-本书同时提供了中文和英文版本:
-- English: [https://practice.rs](https://exercise.rs)
-- 简体中文: [https://zh.practice.rs](https://zh.exercise.rs)
 
-## 关于练习题的说明
+- [英文地址](https://practice.rs)
-- 一切都在线化： 阅读、编辑和测试代码，当然还包括错误提示
+- [中文地址](https://zh.practice.rs)
--  每一道练习题都只有一个目的：那就是让编译通过，但是你需要注意相应的提示，例如删除所有代码也可以让练习通过
+  
-- 难度等级: 简单: 🌟  中等: 🌟🌟  困难: 🌟🌟🌟  地狱: 🌟🌟🌟🌟
+## 为何又一个练习?
 
-## 欢迎你，贡献者
+[Rustlings](https://github.com/rust-lang/rustlings) 和 [Rust By Example](https://github.com/rust-lang/rust-by-example) 都是非常好的练习方式，但是我们还提供了一些独家秘笈:  
-本项目欢迎一切贡献者，特别是怀揣题库的兄弟，你所贡献的每一道题都会注明你的昵称和个人链接，是时候让全世界看看咱的风采了。
 
-## 学习 Rust 语言
+1. 更多的练习题，难度从简单到困难
-我们强烈推荐在开始做练习之前，先看看 [<<Rust语言圣经>>]((https://course.rs)) 这本书，它覆盖了从入门到精通所需的全部知识，相信我，里面绝对有你所需要的 Rust 知识。
 
-(悄咪咪的告诉咱中国用户， `practice.rs` 章节目录和 <<Rust语言圣经>> 完全相同，大家猜猜为什么)
+2. 覆盖面更广，除了 Rust 语言本身外，还包括了**async异步编程, 多线程, 并发原语, 性能优化和标准库等内容s**
+   
+3. 通过一些小型时间项目来实践 Rust
+   
+4. 支持英语和中文
+
+## 如何使用
+
+- 大家可以在线编辑和运行所有练习
+  
+- **唯一的目标就是让每一道题都编译通过，没有错误也没有 panic !**
+  
+- 难度等级: 简单: 🌟  中等: 🌟🌟 困难: 🌟🌟🌟  地狱: 🌟🌟🌟🌟
+
+
+## 社区贡献
+
+我们欢迎所有类型的社区贡献，包括新的练习题、bug和文字修正等。
+
+
+## Buy me a ... 🌟?
+
+对我们来说，来自读者大大的肯定比什么都重要，因此一个 [Github star](https://github.com/sunface/rust-by-practice) 要比一杯咖啡更让我们开心，而且现在它在跳楼打折，无需 998 ， 仅需 0 元钱 :)
 
 
 
 
-## 对比 rustlings
-[Rustlings](https://github.com/rust-lang/rustlings) 只包含了一些小型的、简单的练习题，说实话并不能帮你熟悉学到的 Rust 知识，更别提帮你打通从学习到实践的道路了。
-
-另一个问题就是 rustlings 需要先下载到本地，然后编译运行，无法在线使用。
-
-## 对比 Rust By Example
-[Rust By Example](https://doc.rust-lang.org/stable/rust-by-example/) 是相当不错的在线练习题，相比之前，`practice.rs` 拥有以下优势 :
-
-- 内容覆盖面更广，且练习题更多、针对性更强，充分满足大家做题的快乐
-- 难度从简单到困难都有，且更贴合实际
-- 跟随 Rust 版本实时更新,
-- `course.rs` 和 `practice.rs` 看域名就知道，它非常有信心才敢使用这两个针对性如此之强的域名，而信心来源于**高质量**
-- 应用实践