update readme file

Author: amineProjects

README.md

@@ -68,7 +68,7 @@ This is a project that show the weather forecast of a city and its location on t
    yarn install
    ```
 1. Create a `.env` file then enter your APIs keys
-   ```json
+   ```yaml
    VITE_WEATHER_API_KEY = "Eenter your API key"
    VITE_MAP_API_KEY = "Eenter your API key"
    ```