add step to readme

README.md

@@ -13,7 +13,12 @@ http://ir-blaster.n39.eu
     ```bash
     pip installv esphome
     ```
-3. config hochladen
+3. `secrets.yaml` anlegen:
+    ```yaml
+    WifiPassword: "changeme"
+    OtaPassword: "chamgeme"
+    ```
+4. config hochladen
     ```bash
     esphome run config.yaml
     ```