feat(link): Add overview link

api/availability.go

@@ -0,0 +1,8 @@
+package api
+
+import "fmt"
+
+// GetOrderLink give the link to order the car.
+func (a *Availability) GetOrderLink() string {
+	return fmt.Sprintf("https://www.tesla.com/fr_FR/%s/order/%s?postal=59110&region=FR&referral=jon833", a.Model, a.Vin)
+}