Updated Container API (markdown)

Container-API.md

@@ -25,3 +25,36 @@ Given a container, developers can create sub-containers by **splitting** the con
 This property is recursive, meaning developers can further split the sub-containers using the same rules. The following diagram demonstrates how splits are utilized to create a layout.
 
 [[/images/container-api/container_splits.png|container_splits]]
+
+## [container.New](https://godoc.org/github.com/mum4k/termdash/container#New):
+
+The **container.New** function is used to constract a container. The API of this function uses a recursive builder patters, the complete layout of all the containers in the tree is established in a single call.
+
+To create the terminal layout indicated in the diagram above, the developer can use the following call:
+
+```go
+tb, err := termbox.New()
+if err != nil {
+  return fmt.Errorf("termbox.New => %v", err)
+}
+
+if _, err := container.New(
+    tb,
+    container.SplitVertical(
+        container.Left(),                     // Container left empty in this example.
+        container.Right(
+            container.SplitHorizontal(
+                container.Top()               // Container left empty in this example.
+                container.Bottom(
+                    container.SplitVertical(
+                        container.Left(),     // Container left empty in this example.
+                        container.Right(),    // Container left empty in this example.
+                    ),
+                ),
+            ),
+        ),
+    ),
+); err != nil {
+    panic(err)
+}
+```