Add a description on how to download the dependencies in Android Studio

To Reproduce

Steps to reproduce the behaviour:

1. Go to Open the project in Android Studio
2. Add a description of how to download dependency while setting up the project on your local system.
3. Mention how to do so if Android studio is already downloaded to your system
4. Mention how to do so while downloading Android studio on your system.

Additional context

• Add the steps to do so in points.
• Try to make the points simple, short and easy to understand.