diff --git a/README.md b/README.md
index fc95686..0209993 100644
--- a/README.md
+++ b/README.md
@@ -22,10 +22,10 @@ see routes.txt for allocated domain.
 ## DNS
 There's a bind9 server on NeoPDP-11 (10.127.1.1), all domain names are under "neonetwork.unix".
 
-# Connection Graph
+## Connection Graph
 ![NeoNetwork Nodes](https://raw.githubusercontent.com/NeoChen1024/NeoNetwork/master/nodes.png)
 
-# Files and Directories:
+## Files and Directories:
 	ospf-area.txt	OSPF Area Number
 	bgp-asn.txt	BGP AS Number
 	routes.txt	network subnet allocation