Add documentation for the model command destination id.

[bzbarsky-apple]

Since the documentation explains what it is, rename from the unwieldy
"node-id/group-id" to "destination-id".

Problem

No docs.

Change overview

Add docs.

Testing

Ran a command without sufficient args, saw the help text.

[github-actions]

PR #18704: Size comparison from 55ef609 to 5c9b150

Increases (2 builds for linux)

platform	target	config	section	55ef609	5c9b150	change	% change
linux	chip-tool	debug	(read only)	9460069	9460165	96	0.0
			.rodata	482013	482109	96	0.0
	chip-tool-no-interactive-ipv6only	arm64	(read only)	9206676	9206788	112	0.0
			.rodata	446436	446548	112	0.0

Full report (37 builds for cc13x2_26x2, cyw30739, efr32, esp32, k32w, linux, mbed, nrfconnect, p6, telink)

platform	target	config	section	55ef609	5c9b150	change	% change
cc13x2_26x2	all-clusters-app	LP_CC2652R7	(read only)	668407	668407	0	0.0
			(read/write)	182424	182424	0	0.0
			.bss	73812	73812	0	0.0
			.data	3404	3404	0	0.0
			.rodata	99895	99895	0	0.0
			.text	568288	568288	0	0.0
	lock-ftd	LP_CC2652R7	(read only)	675919	675919	0	0.0
			(read/write)	166864	166864	0	0.0
			.bss	72820	72820	0	0.0
			.data	3236	3236	0	0.0
			.rodata	94407	94407	0	0.0
			.text	581028	581028	0	0.0
	lock-mtd	LP_CC2652R7	(read only)	625327	625327	0	0.0
			(read/write)	145652	145652	0	0.0
			.bss	68556	68556	0	0.0
			.data	3236	3236	0	0.0
			.rodata	94287	94287	0	0.0
			.text	530548	530548	0	0.0
	pump-app	LP_CC2652R7	(read only)	676003	676003	0	0.0
			(read/write)	168084	168084	0	0.0
			.bss	73100	73100	0	0.0
			.data	3272	3272	0	0.0
			.rodata	88899	88899	0	0.0
			.text	586620	586620	0	0.0
	pump-controller-app	LP_CC2652R7	(read only)	653963	653963	0	0.0
			(read/write)	189908	189908	0	0.0
			.bss	73140	73140	0	0.0
			.data	3232	3232	0	0.0
			.rodata	83675	83675	0	0.0
			.text	569808	569808	0	0.0
	shell	LP_CC2652R7	(read only)	661494	661494	0	0.0
			(read/write)	184896	184896	0	0.0
			.bss	76172	76172	0	0.0
			.data	3408	3408	0	0.0
			.rodata	96862	96862	0	0.0
			.text	564404	564404	0	0.0
cyw30739	light	cyw930739m2evb_01	(read/write)	624150	624150	0	0.0
			.app_xip_area	527508	527508	0	0.0
			.bss	79284	79284	0	0.0
			.data	708	708	0	0.0
			.rodata	0	0	0	0.0
			.text	0	0	0	0.0
	lock	cyw930739m2evb_01	(read/write)	626962	626962	0	0.0
			.app_xip_area	531776	531776	0	0.0
			.bss	77860	77860	0	0.0
			.data	672	672	0	0.0
			.rodata	0	0	0	0.0
			.text	0	0	0	0.0
	ota-requestor-no-progress-logging	cyw930739m2evb_01	(read/write)	570882	570882	0	0.0
			.app_xip_area	465980	465980	0	0.0
			.bss	87280	87280	0	0.0
			.data	584	584	0	0.0
			.rodata	0	0	0	0.0
			.text	112	112	0	0.0
efr32	lighting-app	BRD4161A	(read only)	915988	915988	0	0.0
			(read/write)	133372	133372	0	0.0
			.bss	131312	131312	0	0.0
			.data	2060	2060	0	0.0
			.text	915980	915980	0	0.0
		BRD4161A+rpc	(read only)	950176	950176	0	0.0
			(read/write)	150056	150056	0	0.0
			.bss	147792	147792	0	0.0
			.data	2264	2264	0	0.0
			.text	950168	950168	0	0.0
		BRD4161A+rs911x	(read only)	790548	790548	0	0.0
			(read/write)	129640	129640	0	0.0
			.bss	127572	127572	0	0.0
			.data	2068	2068	0	0.0
			.text	790540	790540	0	0.0
	lock-app	BRD4161A+wf200	(read only)	946760	946760	0	0.0
			(read/write)	124124	124124	0	0.0
			.bss	122100	122100	0	0.0
			.data	2024	2024	0	0.0
			.text	946752	946752	0	0.0
	window-app	BRD4161A	(read only)	897260	897260	0	0.0
			(read/write)	133432	133432	0	0.0
			.bss	131384	131384	0	0.0
			.data	2048	2048	0	0.0
			.text	897252	897252	0	0.0
esp32	all-clusters-app	c3devkit	(read only)	1002770	1002770	0	0.0
			(read/write)	1478050	1478050	0	0.0
			.dram0.bss	68376	68376	0	0.0
			.dram0.data	14624	14624	0	0.0
			.flash.rodata	209616	209616	0	0.0
			.flash.text	1002770	1002770	0	0.0
			.iram0.text	62954	62954	0	0.0
		m5stack	(read only)	1057595	1057595	0	0.0
			(read/write)	480056	480056	0	0.0
			.dram0.bss	73896	73896	0	0.0
			.dram0.data	34200	34200	0	0.0
			.flash.rodata	239964	239964	0	0.0
			.flash.text	1052211	1052211	0	0.0
			.iram0.text	123267	123267	0	0.0
k32w	light	k32w061+release	(read/write)	682488	682488	0	0.0
			.bss	80352	80352	0	0.0
			.data	2016	2016	0	0.0
			.text	598416	598416	0	0.0
	lock	k32w061+release	(read/write)	728636	728636	0	0.0
			.bss	80784	80784	0	0.0
			.data	1976	1976	0	0.0
			.text	644172	644172	0	0.0
linux	all-clusters-app	debug	(read only)	2759561	2759561	0	0.0
			(read/write)	176384	176384	0	0.0
			.bss	85440	85440	0	0.0
			.data	2064	2064	0	0.0
			.data.rel.ro	82712	82712	0	0.0
			.dynamic	608	608	0	0.0
			.got	4496	4496	0	0.0
			.init	27	27	0	0.0
			.init_array	1016	1016	0	0.0
			.rodata	241373	241373	0	0.0
			.text	2343634	2343634	0	0.0
	bridge-app	debug+rpc	(read only)	2035481	2035481	0	0.0
			(read/write)	148024	148024	0	0.0
			.bss	73120	73120	0	0.0
			.data	3936	3936	0	0.0
			.data.rel.ro	65384	65384	0	0.0
			.dynamic	592	592	0	0.0
			.got	4272	4272	0	0.0
			.init	27	27	0	0.0
			.init_array	688	688	0	0.0
			.rodata	169065	169065	0	0.0
			.text	1709298	1709298	0	0.0
	chip-tool	debug	(read only)	9460069	9460165	96	0.0
			(read/write)	579192	579192	0	0.0
			.bss	23936	23936	0	0.0
			.data	1152	1152	0	0.0
			.data.rel.ro	547800	547800	0	0.0
			.dynamic	624	624	0	0.0
			.got	5000	5000	0	0.0
			.init	27	27	0	0.0
			.init_array	656	656	0	0.0
			.rodata	482013	482109	96	0.0
			.text	7651125	7651125	0	0.0
	chip-tool-no-interactive-ipv6only	arm64	(read only)	9206676	9206788	112	0.0
			(read/write)	645361	645361	0	0.0
			.bss	42225	42225	0	0.0
			.data	1192	1192	0	0.0
			.data.rel.ro	583112	583112	0	0.0
			.dynamic	560	560	0	0.0
			.got	14984	14984	0	0.0
			.init	24	24	0	0.0
			.init_array	184	184	0	0.0
			.rodata	446436	446548	112	0.0
			.text	7298196	7298196	0	0.0
	lighting-app	debug+rpc	(read only)	2327273	2327273	0	0.0
			(read/write)	153440	153440	0	0.0
			.bss	74912	74912	0	0.0
			.data	2048	2048	0	0.0
			.data.rel.ro	70728	70728	0	0.0
			.dynamic	608	608	0	0.0
			.got	4344	4344	0	0.0
			.init	27	27	0	0.0
			.init_array	792	792	0	0.0
			.rodata	188073	188073	0	0.0
			.text	1972850	1972850	0	0.0
	lock-app	debug	(read only)	2240769	2240769	0	0.0
			(read/write)	148152	148152	0	0.0
			.bss	73600	73600	0	0.0
			.data	1568	1568	0	0.0
			.data.rel.ro	67272	67272	0	0.0
			.dynamic	592	592	0	0.0
			.got	4336	4336	0	0.0
			.init	27	27	0	0.0
			.init_array	752	752	0	0.0
			.rodata	198713	198713	0	0.0
			.text	1882098	1882098	0	0.0
	ota-provider-app	debug	(read only)	2065977	2065977	0	0.0
			(read/write)	141232	141232	0	0.0
			.bss	73056	73056	0	0.0
			.data	1768	1768	0	0.0
			.data.rel.ro	60600	60600	0	0.0
			.dynamic	608	608	0	0.0
			.got	4504	4504	0	0.0
			.init	27	27	0	0.0
			.init_array	648	648	0	0.0
			.rodata	179872	179872	0	0.0
			.text	1727538	1727538	0	0.0
	ota-requestor-app	debug	(read only)	2094929	2094929	0	0.0
			(read/write)	144040	144040	0	0.0
			.bss	73728	73728	0	0.0
			.data	1992	1992	0	0.0
			.data.rel.ro	62664	62664	0	0.0
			.dynamic	592	592	0	0.0
			.got	4344	4344	0	0.0
			.init	27	27	0	0.0
			.init_array	672	672	0	0.0
			.rodata	175840	175840	0	0.0
			.text	1759058	1759058	0	0.0
	shell	debug	(read only)	2575769	2575769	0	0.0
			(read/write)	200408	200408	0	0.0
			.bss	116360	116360	0	0.0
			.data	1376	1376	0	0.0
			.data.rel.ro	76912	76912	0	0.0
			.dynamic	608	608	0	0.0
			.got	4192	4192	0	0.0
			.init	27	27	0	0.0
			.init_array	936	936	0	0.0
			.rodata	222354	222354	0	0.0
			.text	2192242	2192242	0	0.0
	thermostat-no-ble	arm64	(read only)	2357292	2357292	0	0.0
			(read/write)	176609	176609	0	0.0
			.bss	87873	87873	0	0.0
			.data	1520	1520	0	0.0
			.data.rel.ro	79416	79416	0	0.0
			.dynamic	560	560	0	0.0
			.got	4768	4768	0	0.0
			.init	24	24	0	0.0
			.init_array	376	376	0	0.0
			.rodata	147548	147548	0	0.0
			.text	1980768	1980768	0	0.0
	tv-app	debug	(read only)	2856913	2856913	0	0.0
			(read/write)	279072	279072	0	0.0
			.bss	191032	191032	0	0.0
			.data	4672	4672	0	0.0
			.data.rel.ro	77120	77120	0	0.0
			.dynamic	592	592	0	0.0
			.got	4720	4720	0	0.0
			.init	27	27	0	0.0
			.init_array	928	928	0	0.0
			.rodata	221137	221137	0	0.0
			.text	2453602	2453602	0	0.0
	tv-casting-app	debug	(read only)	5433385	5433385	0	0.0
			(read/write)	225344	225344	0	0.0
			.bss	78616	78616	0	0.0
			.data	2400	2400	0	0.0
			.data.rel.ro	138120	138120	0	0.0
			.dynamic	608	608	0	0.0
			.got	4728	4728	0	0.0
			.init	27	27	0	0.0
			.init_array	864	864	0	0.0
			.rodata	340097	340097	0	0.0
			.text	4733794	4733794	0	0.0
mbed	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2418936	2418936	0	0.0
			.bss	202796	202796	0	0.0
			.data	5872	5872	0	0.0
			.text	1381580	1381580	0	0.0
nrfconnect	all-clusters-app	nrf52840dk_nrf52840	(read/write)	1182467	1182467	0	0.0
			bss	138540	138540	0	0.0
			rodata	152796	152796	0	0.0
			text	812288	812288	0	0.0
p6	all-clusters-app	default	(read/write)	2540656	2540656	0	0.0
			.bss	136344	136344	0	0.0
			.data	2808	2808	0	0.0
			.text	1498920	1498920	0	0.0
	light-app	default	(read/write)	2424552	2424552	0	0.0
			.bss	129616	129616	0	0.0
			.data	2608	2608	0	0.0
			.text	1382816	1382816	0	0.0
	lock-app	default	(read/write)	2435240	2435240	0	0.0
			.bss	129432	129432	0	0.0
			.data	2568	2568	0	0.0
			.text	1393504	1393504	0	0.0
telink	light-switch-app	tlsr9518adk80d	(read/write)	782400	782400	0	0.0
			bss	70744	70744	0	0.0
			noinit	40416	40416	0	0.0
			text	553442	553442	0	0.0
	lighting-app	tlsr9518adk80d	(read/write)	802420	802420	0	0.0
			bss	71000	71000	0	0.0
			noinit	40416	40416	0	0.0
			text	570154	570154	0	0.0