Update documentation

docs/classDiagram.md

@@ -450,13 +450,13 @@ It is possible to bind a click event to a node, the click can lead to either a j
 You would define these actions on a separate line after all classes have been declared.
 
 ```
-action className "reference" "tooltip"
+click className call callback() "tooltip"
+click className href "url" "tooltip"
 ```
 
-- _action_ is either `link` or `callback`, depending on which type of interaction you want to have called
 - _className_ is the id of the node that the action will be associated with
-- _reference_ is either the url link, or the function name for callback. (note: callback function will be called with the nodeId as parameter).
 - (_optional_) tooltip is a string to be displayed when hovering over element (note: The styles of the tooltip are set by the class .mermaidTooltip.)
+- note: callback function will be called with the nodeId as parameter.
 
 ### Examples
 
@@ -465,7 +465,7 @@ _URL Link:_
 ```
 classDiagram
 class Shape
-link Shape "http://www.github.com" "This is a tooltip for a link"
+click Shape href "http://www.github.com" "This is a tooltip for a link"
 ```
 
 _Callback:_
@@ -473,7 +473,7 @@ _Callback:_
 ```
 classDiagram
 class Shape
-callback Shape "callbackFunction" "This is a tooltip for a callback"
+click Shape call callbackFunction() "This is a tooltip for a callback"
 ```
 
 ```
@@ -488,8 +488,8 @@ callback Shape "callbackFunction" "This is a tooltip for a callback"
 classDiagram
     class Class01
     class Class02
-    callback Class01 "callbackFunction" "Callback tooltip"
+    click Class01 call callbackFunction() "Callback tooltip"
-    link Class02 "http://www.github.com" "This is a link"
+    click Class02 href "http://www.github.com" "This is a link"
 ```
 
 > **Success** The tooltip functionality and the ability to link to urls are available from version 0.5.2.
@@ -521,8 +521,8 @@ Beginners tip, a full example using interactive links in an html context:
       +run()
       }
 
-      callback Duck callback "Tooltip"
+      click Duck call callback() "Tooltip"
-      click Zebra "http://www.github.com" "This is a link"
+      click Zebra href "http://www.github.com" "This is a link"
   </div>
 
   <script>