Update README.md

Author: dabeng

README.md

@@ -79,10 +79,10 @@ npm install vue-organization-chart -S
       <td>zoom</td><td>boolean</td><td>no</td><td>false</td><td>Users could zoomin/zoomout the orgchart by mouse wheel if they enable this attribute.</td>
     </tr>
     <tr>
-      <td>zoominLimit</td><td>number</td><td>no</td><td>7</td><td>Users are allowed to set a zoom-in limit.</td>
+      <td>zoomin-limit</td><td>number</td><td>no</td><td>7</td><td>Users are allowed to set a zoom-in limit.</td>
     </tr>
     <tr>
-      <td>zoomoutLimit</td><td>number</td><td>no</td><td>0.5</td><td>Users are allowed to set a zoom-out limit.</td>
+      <td>zoomout-limit</td><td>number</td><td>no</td><td>0.5</td><td>Users are allowed to set a zoom-out limit.</td>
     </tr>
   </tbody>
 </table>