Changing instruction part 1

README.md

@@ -55,10 +55,11 @@ In bonus you can also uses the 'login.py' script to speed up the devloppement of
 
 ### Install the requirements
 
-* Flask
-* Flask_sqlalchemy
-* FLask_login
-* Hashlib
+You can run the following command to install all the requirements at once:
+
+```bash
+pip3 install -r requirements.txt --user
+```
 
 ### Usage