diff --git a/README.md b/README.md
index e8134d1..28cb010 100644
--- a/README.md
+++ b/README.md
@@ -101,6 +101,17 @@ void loop() {
 ```
 
 
+### Usage with lambdas that capture context
+
+You **can't pass** a lambda-**with-context** to an argument which expects a **function pointer**. To work that around, 
+use `paramtererizedCallbackFunction`. We pass the context (so the pointer to the object we want to access) to the library
+and it will give it back to the lambda.
+
+```CPP
+okBtn.attachClick([](void *ctx){Serial.println(*(((BtnHandler*)(ctx))) -> state}}), this);
+```
+
+
 ## State Events
 
 Here's a full list of events handled by this library:
@@ -157,4 +168,4 @@ If your buttons aren't acting they way they should, check these items:
 1. Check your wiring and pin numbers.
 2. Did you call `tick()` on each button instance in your loop?
 3. Did you alter your clock timers in any way without adjusting ticks?
-   
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+