[java] Improving getText javadoc. Fixes SeleniumHQ#5936

Author: barancev

java/client/src/org/openqa/selenium/WebElement.java

@@ -141,10 +141,11 @@ public interface WebElement extends SearchContext, TakesScreenshot {
   boolean isEnabled();
 
   /**
-   * Get the visible (i.e. not hidden by CSS) innerText of this element, including sub-elements,
-   * without any leading or trailing whitespace.
+   * Get the visible (i.e. not hidden by CSS) text of this element, including sub-elements.
    *
-   * @return The innerText of this element.
+   * @see <a href="https://w3c.github.io/webdriver/#get-element-text">"Get Element Text" section
+   * in W3C WebDriver Specification</a>
+   * @return The visible text of this element.
    */
   String getText();