chore: update readme to add images

Added images and examples for Custom Trigger in README.

Author: damlayildiz

README.md

@@ -70,6 +70,8 @@ Adds a floating button in the bottom-right corner that opens the chatbot when cl
 />
 ```
 
+<img width="1887" height="829" alt="Screen Shot 2025-10-24 at 14 39 33 PM" src="https://github.com/user-attachments/assets/dfb3b8c0-ba8b-4c7d-bf0d-a4022982d45f" />
+
 ### Custom Trigger
 
 **React:**
@@ -101,6 +103,8 @@ function App() {
 }
 ```
 
+<img width="1898" height="830" alt="Screen Shot 2025-10-24 at 14 42 16 PM" src="https://github.com/user-attachments/assets/a2efaa07-f441-4281-bf8c-818b98a8c8b1" />
+
 **Vanilla JavaScript:**
 
 ```html