fix: update README

Author: lili668668

README.md

@@ -8,16 +8,22 @@
 $ curl https://sh.rustup.rs -sSf | sh
 ```
 
-2. Clone the repo
+2. Restart your terminal
+
+3. Clone the repo
 
 ```sh
 $ git clone https://github.com/lili668668/modernweb-booth-question.git
 ```
 
-3. Go to the project and run the code
+4. Go to the project and run the code
 
 ```sh
 $ cd modernweb-booth-question
 
 $ cargo run
 ```
+
+## About us
+
+We are Rust Taiwan. There is our chat group: [http://t.me/rust\_tw](http://t.me/rust_tw). Welcome to join us!