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README.md

@@ -152,8 +152,38 @@ Bare-bones ESP32 module can be programmed via UART interface (`GPIO03` and `GPIO
 
 ### ESP-IDF Framework
 
-_Configuration menu custom variables
+_Configuration menu custom variables_
 
+_Kconfig.projbuild_ file contains custom menu configuration for setting user-defined variables such as button GPIO, device description, etc._
+
+``` text
+menu "Example Configuration"
+
+    config EXAMPLE_BOARD_BUTTON_GPIO
+        int "Boot Button GPIO"
+        default 9 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C6
+        default 0
+        help
+            GPIO number on which the "Boot" button is connected. This is generally used
+            by the application for custom operations like toggling states, resetting to defaults, etc.
+
+    config EXAMPLE_ENABLE_TEST_NOTIFICATIONS
+        bool "Test Notifications"
+        default n
+        help
+            Enable this option to test mobile push notifications. When enabled, turning on the switch using
+            push button will trigger a parameter notification {"Switch":{"Power":true}} and turning off will
+            trigger an alert "Switch was turned off".
+
+    config EXAMPLE_OUTPUT_GPIO
+        int "Output GPIO"
+        default 19
+        help
+            This is an output GPIO that will be connected to a relay or other driver circuit in most cases.
+            If the power changes, this GPIO output level will also change.
+
+endmenu
+```
 
 ## Temperature Node. The Key Elements and Components