Update README.md
diff --git a/README.md b/README.md
index e05557d..b871dfa 100755
--- a/README.md
+++ b/README.md
@@ -20,17 +20,17 @@
For the explanation of configuring NLSR, we will consider following network topology.
- ---------
- | |
- | | /ndn/memphis.edu/castor
- ---------
- face9 / \ face11
- / \
- / \
- / \
- face7/ \ face10
+ ---------
+ | |
+ | | /ndn/memphis.edu/castor
+ ---------
+ face9/ \ face11
+ / \
+ / \
+ / \
+ face7/ \ face10
--------- --------- ---------
- | |face8 face11 | |face13 face7 | |
+ | |face8 face11 | |face13 face7| |
| |---------------| |--------------------| |
--------- --------- ---------
/ndn/memphis.edu/pollux /ndn/memphis.edu/mira /ndn/memphis.edu/sirius