Add processors entry in top-level README.md

[breedx-splk]

It looks like the procesors module is missing from the topmost table in the readme. We should add an entry for that.

[cyrille-leclerc]

I think the entry exists in README.md / provided libraries with the name "Intercept and Process Signals Globally"

[breedx-splk]

Dang, yeah i missed that