#10 /api/v1/coils content-type to application/json

enervent-ctrl-go/main.go

@@ -14,6 +14,7 @@ var (
 )
 
 func coils(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
 	json.NewEncoder(w).Encode(pingvin.Coils)
 }