Added Basic Structure for Readme

[Blake2912]

• Setup instructions added
• Architecture image also inserted to the readme
• created doc-assets/ folder to store any assets related with the readme

[Blake2912]

Check the basic structure of the readme and add other content accordingly.

[amartyanambiar]

Made changes wrt Title and About section. Added components image. @Blake2912

[Blake2912]

@amartyanambiar done with the changes requested

[Blake2912]

@amartyanambiar check the linkage there is some issues related with the same