diff --git a/reference/html/appendix.html b/reference/html/appendix.html
index 9e1dc7d0..45b54d5f 100644
--- a/reference/html/appendix.html
+++ b/reference/html/appendix.html
@@ -186,17 +186,17 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.discovery.client.health-indicator.enabled</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">true</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.discovery.client.health-indicator.include-description</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">false</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.discovery.client.simple.instances</p></td>
 <td class="tableblock halign-left valign-top"></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.discovery.client.simple.local.instance-id</p></td>
@@ -221,7 +221,7 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.discovery.client.simple.order</p></td>
 <td class="tableblock halign-left valign-top"></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.discovery.enabled</p></td>
@@ -246,12 +246,12 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.hypermedia.refresh.fixed-delay</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">5000</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.hypermedia.refresh.initial-delay</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">10000</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.inetutils.default-hostname</p></td>
@@ -316,12 +316,12 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.loadbalancer.health-check.path</p></td>
 <td class="tableblock halign-left valign-top"></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.loadbalancer.retry.enabled</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">true</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.loadbalancer.ribbon.enabled</p></td>