Updated README

[Agnik7]

Updated the information about Introduction to AI in the README file to make it more easier to grasp.

[Agnik7]

@microsoft-github-policy-service agree

[TBTS-2011]

Great! The only perk that could need to be fixed is that a README file is not supposed to be fifty lines long, and removing the first line of this file, which is already fitting is not a great idea. Other than that, no problems!

[Agnik7]

I could not bring the number of lines below 50, however, I have tried to reduce it to 65 lines, while keeping the material intact.

A notable change I did, is that, I have removed the details from the Contributions, as I observed that a markdown file exists that contains the exact same content about the contribution, so I have just provided the link to that file.

@pavans2011 Kindly review this.

[TBTS-2011]

Great job pal! Brilliant work, even though it's just a README file, your imperovement counts. Better than the previous change log by the way!

[Agnik7]

Thanks a lot @pavans2011 for taking out the time to review this small contribution.

[TBTS-2011]

NP pal! Always available to help a hand!

[TBTS-2011]

I think I will approve this commit because it doesn't have any conflicts with the main branch.

[RahulVadisetty91]

Ensure the code block is complete and properly formatted.