add "/" to basedir if not present

render.go

@@ -3,6 +3,7 @@ package ginpongo2
 import (
 	"fmt"
 	"net/http"
+	"strings"
 
 	"github.com/flosch/pongo2"
 	"github.com/gin-gonic/gin/render"
@@ -49,6 +50,9 @@ func New(basedir string, debug bool) *Pongo {
 	p := new(Pongo)
 	p.set = pongo2.NewSet("html")
 	p.set.Debug = debug
+	if !strings.HasSuffix(basedir, "/") {
+		basedir = basedir + "/"
+	}
 	p.basedir = basedir
 	return p
 }