Template:Graph:Saint Petersburg Metro expansion/doc

{	"description": "Graph for the Saint Petersburg Metro station count over the years. Stations are grouped by lines. Lines are colour-coded.", "params": { "width": { "description": "graph width", "suggested": true, "type": "number", "autovalue": "800" },		"height": { "description": "graph height", "suggested": true, "type": "number", "autovalue": "400" },		"ylabel": { "type": "string", "autovalue": "" },		"xlabel": { "type": "string" }	},	"format": "inline" }