added 2nd screenshot in art

internal/art.go

@@ -16,6 +16,7 @@ type artUrls struct {
 	spine       string
 	logo        string
 	screenshot  string
+	screenshot2 string
 }
 
 func getArtUrlForGameFromGithub(gameID string) artUrls {
@@ -33,6 +34,7 @@ func getArtUrlForGameFromGithub(gameID string) artUrls {
 		spine:       genURL("LAB"),
 		logo:        genURL("LGO"),
 		screenshot:  genURL("SCR_00"),
+		screenshot2: genURL("SCR_01"),
 	}
 }
 
@@ -49,6 +51,7 @@ func downloadArtForGame(gameID string, targetDir string) error {
 	dl(urls.disc, "ICO")
 	dl(urls.background, "BG")
 	dl(urls.screenshot, "SCR")
+	dl(urls.screenshot2, "SRC2")
 	dl(urls.spine, "LAB")
 
 	return nil