添加第十章答案链接

zh-CN/src/generics-traits/advanced-traits.md

@@ -268,4 +268,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/advanced-trait.md)(under the solutions path), but only use it when you need it :)
+> 你可以在[这里](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/advanced-trait.md)找到答案(在 solutions 路径下) 

zh-CN/src/generics-traits/const-generics.md

@@ -134,4 +134,6 @@ pub enum Assert<const CHECK: bool> {}
 pub trait IsTrue {}
 
 impl IsTrue for Assert<true> {}
-```
+```
+
+> 你可以在[这里](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/const-generics.md)找到答案(在 solutions 路径下) 

zh-CN/src/generics-traits/trait-object.md

@@ -223,4 +223,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/trait-object.md)(under the solutions path), but only use it when you need it :)
+> 你可以在[这里](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/trait-object.md)找到答案(在 solutions 路径下) 

zh-CN/src/generics-traits/traits.md

@@ -467,4 +467,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/traits.md)(under the solutions path), but only use it when you need it :)
+> 你可以在[这里](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/traits.md)找到答案(在 solutions 路径下)