React-Native-App-Tutorial.md

@@ -21,7 +21,7 @@ Install the Expo CLI by using the following command.
 
 <div>
 
-```ruby
+```javascript
 //Install Expo-cli from command line tools
 npm install -g expo-cli
 ```
@@ -30,7 +30,7 @@ npm install -g expo-cli
 
 </div><span dir="">You can simply initialise your project with the following command:</span>
 
-```ruby
+```javascript
 //Initalizes your project
 expo init TUC
 ```