Editing Template:Leader card credit

{{#switch:{{{1}}}
|Basilisk=[https://twitter.com/CV35W CV35W]
|Gryphon=[https://twitter.com/yumefoxx Yume]
|Kitsune=[https://twitter.com/LoafeeBuns Loafee]
|Kraken=[https://twitter.com/Cyclea2 Cyclea]
|Mantis=[https://twitter.com/mijthemij mimy]
|Mermaid=[https://twitter.com/myoukyomou myoukyomou]
|Minotaur=[https://twitter.com/Twilight0703_ Twilight]
|Pegasus=[https://twitter.com/MoonieStarrcat Moonie]
|Wyvern=[https://twitter.com/RacchusRefrain Raku]
|Yeti=[https://twitter.com/NetBa_Art NetBa]
}}
<noinclude>
<templatedata>
{
	"params": {
		"1": {
			"description": "Name of a leader",
			"example": "Basilisk",
			"type": "string",
			"required": true
		}
	},
	"description": "Credits the artist of a leader card"
}
</templatedata>
</noinclude>