docs: Integrate some content of keyless.md into overview.md

[jonvnadelberg]

Description

some parts of keyless.md need to be integrated into the overview.md file as it now exists.

[Bhardwaj-Himanshu]

Hi @jonvnadelberg,
Could you also point on the points or topics which need to be moved from one file to another?
Thanks!

[jonvnadelberg]

Chiefly the ttl.sh information that gives a good example of signing with containeres.

[Bhardwaj-Himanshu]

So I took a look at both keyless.md and overview.md

Keyless section explains in detail about the keyless sign-in, while overview.md gives a complete overview of all the methods to sign in.

So I forked the repo and added over 60 lines, from keyless.md, starting from the headline this page talks in detail about keyless sign-in and moved it to overview.md--> the whole keyless signing section (can't even tag the code too, as it is a markdown file*

(something like this ^ not the complete code snippet attached here)

Not opening a pull request yet cause I want to discuss if you are working on something and your ideas about it?

Thanks

[haydentherapper]

@Bhardwaj-Himanshu, this issue is already being worked on by Jon. See the open PR #156

[Bhardwaj-Himanshu]

Thanks for letting me know @haydentherapper
I'll move to #156 if I could provide any help on the issue.
Also, send me some of your songs if you do rap-->looking at your username;)
Joke intended, no offense!