Update vendor

vendor/github.com/labstack/echo/cookbook/auto-tls/server.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"net/http"
+
+	"golang.org/x/crypto/acme/autocert"
+
+	"github.com/labstack/echo"
+	"github.com/labstack/echo/middleware"
+)
+
+func main() {
+	e := echo.New()
+	// e.AutoTLSManager.HostPolicy = autocert.HostWhitelist("<DOMAIN>")
+	// Cache certificates
+	e.AutoTLSManager.Cache = autocert.DirCache("/var/www/.cache")
+	e.Use(middleware.Recover())
+	e.Use(middleware.Logger())
+	e.GET("/", func(c echo.Context) error {
+		return c.HTML(http.StatusOK, `
+			<h1>Welcome to Echo!</h1>
+			<h3>TLS certificates automatically installed from Let's Encrypt :)</h3>
+		`)
+	})
+	e.Logger.Fatal(e.StartAutoTLS(":443"))
+}