Add OpenRouter to inference docs

qdrant-landing/content/documentation/headless/snippets/inference/openrouter-query/go.go

@@ -0,0 +1,31 @@
+package snippet
+
+import (
+	"context"
+
+	"github.com/qdrant/go-client/qdrant"
+)
+
+func Main() {
+	client, err := qdrant.NewClient(&qdrant.Config{
+		Host:   "xyz-example.qdrant.io",
+		Port:   6334,
+		APIKey: "<paste-your-openrouter-key-here>",
+		UseTLS: true,
+	})
+
+	if err != nil { panic(err) } // @hide
+
+	client.Query(context.Background(), &qdrant.QueryPoints{
+		CollectionName: "{collection_name}",
+		Query: qdrant.NewQueryNearest(
+			qdrant.NewVectorInputDocument(&qdrant.Document{
+				Model: "openrouter/mistralai/mistral-embed-2312",
+				Text:  "How to bake cookies?",
+				Options: qdrant.NewValueMap(map[string]any{
+					"openrouter-api-key": "<YOUR_OPENROUTER_API_KEY>",
+				}),
+			}),
+		),
+	})
+}