Add Dependabot badge to repo

[John Bampton]

Maybe get the badge code from Sheilds io?

https://shields.io/badges

[ANIRUDDHA ADAK]

Please assign me this @jbampton . And review my PR #91 .

[John Bampton]

Hey @aniruddhaadak80 you are now assigned.

I am taking a break now to eat dinner thanks