Unclear return type specification of cpus() in OS.md

[pklaschka]

uxp/src/pages/uxp/reference-js/Modules/os/OS.md

Lines 34 to 41 in 4751009

	## cpus()
	Gets the platform cpu information we are running on (eg. "{'Intel(R) Core(TM) i9-8950HK CPU @ 2.90GHz', 2900}")
	**Returns**: `array` - the array of objects containing information about each logical CPU core
	Currently only model and speed properties are supported. times property is not supported.
	Access to CPU information, such as model string and frequency, is limited on UWP.
	"ARM based architecture" or "X86 based architecture" is returned as a 'model' value on UWP.
	0 is returned as a 'speed' value on UWP.

It isn't clear what kind of information is in the array. Even if we don't have a perfect type definition, specifiying that this is an Array<object> (or maybe Array<any>) already increases the understanding that one can get just from reading/scanning this).