diff --git a/README.md b/README.md
index 25bd7c8..2bbb1c9 100644
--- a/README.md
+++ b/README.md
@@ -84,13 +84,13 @@ https://github.com/superconvert/smart-os
 5. 防火墙
 
 # 网络拓扑图
-+----------------------------------------------------------------+-----------------------------------------+-----------------------------------------+
-|                          Host                                  |              Container 1                |              Container 2                |
-|                                                                |                                         |                                         |
-|       +------------------------------------------------+       |       +-------------------------+       |       +-------------------------+       |
-|       |             Newwork Protocol Stack             |       |       |  Newwork Protocol Stack |       |       |  Newwork Protocol Stack |       |
-|       +------------------------------------------------+       |       +-------------------------+       |       +-------------------------+       |
-|               ↑                    ↑                           |                   ↑                     |                    ↑                    |
++----------------------------------------------------------------+-----------------------------------------+-----------------------------------------+  
+|                          Host                                  |              Container 1                |              Container 2                |  
+|                                                                |                                         |                                         |  
+|       +------------------------------------------------+       |       +-------------------------+       |       +-------------------------+       |  
+|       |             Newwork Protocol Stack             |       |       |  Newwork Protocol Stack |       |       |  Newwork Protocol Stack |       |  
+|       +------------------------------------------------+       |       +-------------------------+       |       +-------------------------+       |  
+|               ↑                    ↑                          |                   ↑                     |                    ↑                    |
 |...............|....................|...........................|...................|.....................|....................|....................|
 |               ↓                    ↓                           |                   ↓                     |                    ↓                    |
 |        +-------------+    +---------------+                    |           +---------------+             |            +---------------+            |