Add salient features in the main page of website

[czgdp1807]

Description of the problem

We should provide compelling reasons in the documentation so that people are tempted to use our project.

Example of the problem

References/Other comments

I will work on this.

[nidz27]

@czgdp1807 I would like to work on this issue. Please assign it to me and tell me more about what should I do.

[czgdp1807]

I added it in #428. Probably #428 was merged in a branch other than master, so this issue wasn't closed automatically. Doing it now. Sorry for the confusion.

[czgdp1807]

@nidz27 Feel free to work on other issues. Just leave a comment on the issue you want to work on.