Updated read me

Author: aliumujib

README.md

@@ -80,9 +80,9 @@ To compile:
 - Obtain an API key from https://thecatapi.com/
 - Create credentials.properties file in the root project directory
 - Add the API key this format to the credentials.properties file
-```properties
-CAT_API_KEY=your_actual_api_key
-```
+    ```properties
+    CAT_API_KEY=your_actual_api_key
+    ```
 - Run with Android Studio Android Studio Jellyfish | 2023.3.1 Patch 1 or later
 
 ## 💡License