Update README.md

Author: jessiemongeon1

motoko/classes/README.md

@@ -30,7 +30,11 @@ This application's logic is written in [Motoko](https://internetcomputer.org/doc
 
 ### 3. Navigate into the project's directory.
 
-### 4. Run `dfx start --background --clean && dfx deploy` to deploy the project to your local environment. 
+### 4. Deploy the project to your local environment:
+
+```
+dfx start --background --clean && dfx deploy
+```
 
 ## Security considerations and best practices