Fix suggestion to use nonexistent "list-templates" subcommand (#1544)
Fix suggestion to use nonexistent "list-templates" subcommand (#1544)

The "list-templates" subcommand has been removed via https://github.com/getgauge/gauge/issues/693
in favor of a "-t/--templates" flag to the "init" subcommand.

Old usage: `gauge list-templates`
New usage: `gauge init --templates`
getgauge/gauge,getgauge/gauge,getgauge/gauge,getgauge/gauge,getgauge/gauge