Update to main readme.md

I think it'll fit now.

Signed-off-by: shennetsind <ind@henn.et>
Resized building a plugin on shennetsind root

Signed-off-by: shennetsind <ind@henn.et>
Fixed size on readme.md within Yommy's root

Signed-off-by: shennetsind <ind@henn.et>