docs: fix typo

group.go

@@ -67,7 +67,8 @@ func (g *Group) ANY(path string, handler fasthttp.RequestHandler) {
 // "/etc/passwd" would be served.
 // Internally a fasthttp.FSHandler is used, therefore http.NotFound is used instead
 // Use:
-//     router.ServeFiles("/src/{filepath:*}", "./")
+//
+//	router.ServeFiles("/src/{filepath:*}", "./")
 func (g *Group) ServeFiles(path string, rootPath string) {
 	g.router.ServeFiles(g.prefix+path, rootPath)
 }
@@ -80,7 +81,8 @@ func (g *Group) ServeFiles(path string, rootPath string) {
 // Internally a fasthttp.FSHandler is used, therefore http.NotFound is used instead
 // of the Router's NotFound handler.
 // Use:
-//     router.ServeFilesCustom("/src/{filepath:*}", *customFS)
+//
+//	router.ServeFilesCustom("/src/{filepath:*}", *customFS)
 func (g *Group) ServeFilesCustom(path string, fs *fasthttp.FS) {
 	g.router.ServeFilesCustom(g.prefix+path, fs)
 }