doc: Fix index type for json_array_foreach()
doc: Fix index type for json_array_foreach()

rogerz/jansson,bstarynk/jansson,firepick1/FireSight,firepick1/jansson,akheron/jansson,wirebirdlabs/featherweight-jansson,markalanj/jansson,chrullrich/jansson,attie/jansson,markalanj/jansson,firepick-delta/FireSight,rogerz/jansson,firepick1/FireSight,firepick1/jansson,bstarynk/jansson,bstarynk/jansson,attie/jansson,firepick1/jansson,npmccallum/jansson,wirebirdlabs/featherweight-jansson,firepick-delta/FireSight,liu3tao/jansson,akheron/jansson,liu3tao/jansson,OlehKulykov/jansson,AmesianX/jansson,Vorne/jansson,rogerz/jansson,rogerz/jansson,firepick-delta/FireSight,chrullrich/jansson,OlehKulykov/jansson,firepick1/FireSight,akheron/jansson,npmccallum/jansson,simonfojtu/FireSight,slackner/jansson,AmesianX/jansson,markalanj/jansson,simonfojtu/FireSight,Mephistophiles/jansson,Mephistophiles/jansson,slackner/jansson,simonfojtu/FireSight,Vorne/jansson