diff --git a/README.md b/README.md
index 92c0cef..17a8ed9 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,3 @@
-# PlantCtrl
\ No newline at end of file
+# PlantCtrl
+## Documentation of Power-Modes
+https://lastminuteengineers.com/esp32-sleep-modes-power-consumption/#esp32-deep-sleep