Create a navbar top section

[ritikamish]

• [x] heading animation text
• [x] add navbar contents
• [x] add background image

[Dhananjay155]

today task completed.

[ritikamish]

Use bootstrap classes to style elements. Try to avoid using tag names to style them.

[ritikamish]

navbar is not sticking at the top while scrolling.

• [x] navbar sticky