add dependencies to README.md

[UncleTallest]

I added the current dependencies directly to the README.md file as the link to the deb control file now gives a 404.

[UncleTallest]

Though I should mention that I did the compiling under elementary OS 8 so I am unsure if this is backwards-compatible with elementary OS 7.

[stsdc]

Thanks. I keep forgetting about that.
Also here is a link to the deb control file: https://github.com/elementary/monitor/blob/deb-packaging/debian/control
I can't recall now, but there was a command to install dependencies from control file, maybe we can provide just that?

[ryonakano]

I can't recall now, but there was a command to install dependencies from control file, maybe we can provide just that?

I think maybe you mean apt build-dep <package name>?

[stsdc]

I think maybe you mean apt build-dep <package name>?

Probably yes. But it's also means, we need to also instruct to change the branch and now it gets complicated a bit.
As I'm thinking about this, putting deps right into readme is not that bad 😅