[DOC] add example of inline statement in main doc

README.md

@@ -190,6 +190,12 @@ class Counter extends Component {
 }
 ```
 
+Note that the `t-on-click` handler can even be replaced by an inline statement:
+
+```xml
+    <button t-on-click="state.value++">
+```
+
 **Props:** sub components often needs some information from their parents. This
 is done by adding the required information to the template. This will then be
 accessible by the sub component in the `props` object. Note that there is an

tools/playground/samples.js

@@ -466,10 +466,6 @@ class TodoItem extends Component {
         useAutofocus("input");
     }
 
-    editTodo() {
-        this.state.isEditing = true;
-    }
-
     handleKeyup(ev) {
         if (ev.keyCode === ENTER_KEY) {
             this.updateTitle(ev.target.value);
@@ -603,7 +599,7 @@ const TODO_APP_STORE_XML = `<templates>
   <li t-name="TodoItem" class="todo" t-att-class="{completed: props.completed, editing: state.isEditing}">
     <div class="view">
       <input class="toggle" type="checkbox" t-on-change="dispatch('toggleTodo', props.id)" t-att-checked="props.completed"/>
-      <label t-on-dblclick="editTodo">
+      <label t-on-dblclick="state.isEditing = true">
         <t t-esc="props.title"/>
       </label>
       <button class="destroy" t-on-click="dispatch('removeTodo', props.id)"></button>