4.0.0 (#42)

* adding URL conversions

* updating gotenberg version in documentation

* pkg: input as variadic string (#39)

* pkg: input as variadic string

* pkg: fix link to github doc

* update doc about v4 client

* make doc

* fixing missing variadic inputs in doc

* adding more fonts

* updating PHP documentation

pkg/merge_test.go

@@ -13,10 +13,10 @@ import (
 
 func TestMerge(t *testing.T) {
 	c := &Client{Hostname: "http://localhost:3000"}
-	req, err := NewMergeRequest([]string{
+	req, err := NewMergeRequest(
 		test.PDFTestFilePath(t, "gotenberg.pdf"),
 		test.PDFTestFilePath(t, "gotenberg.pdf"),
-	})
+	)
 	require.Nil(t, err)
 	dirPath, err := rand.Get()
 	require.Nil(t, err)