Updated Dynamic layout (markdown)

Dynamic-layout.md

@@ -26,7 +26,7 @@ The **Container.Update** method applies the specified options to a container wit
 
 ### Replacing widget in a container
 
-The following code places a button widget inside a container and then updates the container by replacing the button with a Text widget:
+The following code places a button widget inside a container and then updates the container by replacing the button with a text widget:
 
 ```go
 tb, err := termbox.New()
@@ -62,4 +62,52 @@ if err := c.Update("myID", container.PlaceWidget(t)); err != nil {
 }
 ```
 
-### Changing the layout by specifying new splits
+### Changing the layout by specifying new splits
+
+When container is updated by adding a new split, any previously placed widgets or sub-containers are replaced with the new layout. This can be utilized to change the layout of the screen and display new grid and content.
+
+The following code places a button widget inside a container and then updates the container by splitting it into two and placing a button and a text widget:
+
+```go
+tb, err := termbox.New()
+if err != nil {
+    panic(err)
+}
+defer tb.Close()
+
+b, err := button.New("hello world", func() error {
+    return nil
+},
+)
+if err != nil {
+    return fmt.Errorf("button.New => %v", err)
+}
+
+t, err := text.New()
+if err != nil {
+    return fmt.Errorf("text.New => %v", err)
+}
+
+c, err := container.New(
+    t,
+    container.PlaceWidget(b),
+    container.ID("myID"),
+)
+if err != nil {
+    return fmt.Errorf("container.New => %v", err)
+}
+
+if err := c.Update(
+    "myID",
+    container.SplitVertical(
+         container.Left(
+             container.PlaceWidget(b),
+         ),
+         container.Right(
+             container.PlaceWidget(t),
+         ),
+    ),
+); err != nil {
+    return fmt.Errorf("c.Update => %v", err)
+}
+```