chore: mark that /edits endpoints supports only text-davinci-edit-001…

… model (#9)

edits.go

@@ -41,6 +41,9 @@ type EditResponse struct {
 
 // Edit given a prompt and an instruction, the model will return an edited version of the prompt.
 //
+// Pay attention! This works only with text-davinci-edit-001
+// See issue: https://community.openai.com/t/is-edit-endpoint-documentation-incorrect/23361/10
+//
 // Docs: https://beta.openai.com/docs/api-reference/edits
 func (e *Engine) Edit(ctx context.Context, opts *EditOptions) (*EditResponse, error) {
 	if err := e.validate.StructCtx(ctx, opts); err != nil {

edits_test.go

@@ -14,7 +14,7 @@ import (
 func TestEdits(t *testing.T) {
 	e := New(os.Getenv("OPENAI_KEY"))
 	r, err := e.Edit(context.Background(), &EditOptions{
-		Model:       DefaultModel,
+		Model:       "text-davinci-edit-001", // works only with this model
 		Input:       "Write a little bit of Wikipedia. What is that?",
 		Instruction: "Write huge text about Wikipedia in education format.",
 	})