Repo guide needs updation

[yogeshbdeshpande]

In the last six months many new repositories joined Veraison Organisation.

The repo guide and the associated diagram needs updating.

[Sukuna0007Abhi]

On to it I worked a little in it @yogeshbdeshpande

[yogeshbdeshpande]

Thank you @Sukuna0007Abhi : I will assign the issue to you.

[Sukuna0007Abhi]

Thanks sir @yogeshbdeshpande

[Sukuna0007Abhi]

pls review sir @thomas-fossati sir @yogeshbdeshpande