add chapter: fighting with compiler

solutions/fight-compiler/borrowing.md

@@ -0,0 +1,26 @@
+1.
+```rust
+struct test {
+    list: Vec<i32>,
+    a: i32
+}
+
+impl test {
+    pub fn new() -> Self {
+        test { list:vec![1,2,3,4,5,6,7], a:0 }
+    }
+
+    pub fn run(&mut self) {
+        for i in 0..self.list.len() {
+            self.do_something(self.list[i])
+        }
+
+    }
+
+    pub fn do_something(&mut self, n: i32) {
+        self.a = n;
+    }
+}
+
+fn main() {}
+```

src/SUMMARY.md

@@ -39,7 +39,7 @@
 - [Result and panic](result-panic/intro.md)
   - [panic!](result-panic/panic.md)
   - [Result and ?](result-panic/result.md)
-- [Crate and module](crate-module/intro.md)
+- [Crate and Module](crate-module/intro.md)
   - [Package and Crate](crate-module/crate.md)
   - [Module](crate-module/module.md)
   - [Advanced use and pub](crate-module/use-pub.md)
@@ -84,4 +84,7 @@
   - [Stream](async/stream.md)
   
 - [Standard Library TODO](std/intro.md)
-  - [String](std/String.md)
+  - [String](std/String.md)
+
+- [Fighting with Compiler](fight-compiler/intro.md)
+  - [Borrowing](fight-compiler/borrowing.md)

src/fight-compiler/borrowing.md

@@ -0,0 +1,29 @@
+# Borrowing
+
+1. 🌟🌟
+```rust,editable
+// FIX the error without removing any code line
+struct test {
+    list: Vec<i32>,
+    a: i32
+}
+
+impl test {
+    pub fn new() -> Self {
+        test { list:vec![1,2,3,4,5,6,7], a:0 }
+    }
+
+    pub fn run(&mut self) {
+        for i in self.list.iter() {
+            self.do_something(*i)
+        }
+
+    }
+
+    pub fn do_something(&mut self, n: i32) {
+        self.a = n;
+    }
+}
+
+fn main() {}
+```

src/fight-compiler/intro.md

@@ -0,0 +1,4 @@
+# Fighting with Compiler
+Fighting with compiler is very common in our daily coding, especially for those unfamiliar with Rust.
+
+This chapter will provide some exercises to help us avoid such cases to lower the steep learning curve.

zh-CN/src/SUMMARY.md

@@ -1,6 +1,6 @@
 # Summary
 
-- [关于 pracitce.rs](about.md)
+- [关于 pracitce.rs](why-exercise.md)
 - [变量绑定与解构](variables.md)
 - [基本类型](basic-types/intro.md)
   - [数值类型](basic-types/numbers.md)