Update README.md

Author: huynhducthanhtuan

README.md

@@ -5,23 +5,23 @@
 #### 1. Clone project
 
 ```bash
-$ git clone https://github.com/Capstone-C2SE02-TI/backend-node-mongodb.git
+git clone https://github.com/Capstone-C2SE02-TI/backend-node-mongodb.git
 ```
 
 #### 2. Change directory to folder backend-node-mongodb
 
 ```bash
-$ cd backend-node-mongodb
+cd backend-node-mongodb
 ```
 
 #### 3. Install dependencies
 
 ```bash
-$ npm install
+npm install
 ```
 
 #### 4. Run in developement mode
 
 ```bash
-$ npm start
+npm start
 ```