Add Code Sample - Bootstrap Modal

[Bachittarjeet]

It would be a great help if you can add new Lectures (Separate by Topic name = Folder Name)

Feel free to contact @Bachittarjeet for further details

[bratinkundu]

Hey @Bachittarjeet
I have made a PR for this issue. Please review it and merge. Thanks!

[Bachittarjeet]

Thanks @bratinkundu