docs(flags.go): flag description typo (#1905)

internal/flags/flags.go

@@ -109,7 +109,7 @@ func init() {
 	pflag.StringVar(&Output.Group.End, "output-group-end", "", "Message template to print after a task's grouped output.")
 	pflag.BoolVar(&Output.Group.ErrorOnly, "output-group-error-only", false, "Swallow output from successful tasks.")
 	pflag.BoolVarP(&Color, "color", "c", true, "Colored output. Enabled by default. Set flag to false or use NO_COLOR=1 to disable.")
-	pflag.IntVarP(&Concurrency, "concurrency", "C", 0, "Limit number tasks to run concurrently.")
+	pflag.IntVarP(&Concurrency, "concurrency", "C", 0, "Limit number of tasks to run concurrently.")
 	pflag.DurationVarP(&Interval, "interval", "I", 0, "Interval to watch for changes.")
 	pflag.BoolVarP(&Global, "global", "g", false, "Runs global Taskfile, from $HOME/{T,t}askfile.{yml,yaml}.")
 	pflag.BoolVar(&Experiments, "experiments", false, "Lists all the available experiments and whether or not they are enabled.")