Create dinosaur-game

[DevanshKyada27]

Fixes #156

Created a chrome dinosaur game using HTML, CSS, JS.

Hope this solves the problem.

Looking forward for mering this PR.

This are the images used in the below code.

156 Dinosaur Game

Title :Dinosaur Game

Issue No. :#156

Code Stack : HTML, CSS, JS

Close #<156>

Checklist:

• [X] I have mentioned the issue number in my Pull Request.
• [X] I have commented my code, particularly in hard-to-understand areas
• [X] I have created a helpful and easy to understand README.md
• [X] I have updated the Index.html file for my contribution

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[sadanandpai]

@DevanshKyada27 please read the contributing.md and refer to other challenges