Add EVENTS Lifecycle

EVENTS-Lifecycle.md

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+* [`ready`](#usage-ready)
+
+---
+
+## <a id="usage-ready"></a>.ready
+
+**Description**
+Specify a function to execute when the DOM is fully loaded.
+
+**Parameters**
+
+* `handler` (Function): A function to execute after the DOM is ready.
+
+**Returns**
+
+* (jBase): Current instance.
+
+**Example**
+
+```javascript
+$(document).ready(function() {
+    console.log('DOM is ready!');
+});
+
+```