Update README.md

Author: wangbojing

README.md

@@ -4,45 +4,48 @@
 
 具体详情还可以移步 http://www.ntytcp.com
 
-# netmap install
- 
+## netmap install
+```
 $ git clone https://github.com/wangbojing/netmap.git
 
 $ ./configure
 
 $ make 
 
 $ sudo make install
+```
+## netmap install complete.
 
-# netmap install complete.
+#### Troubleshooting
 
-1. problem : configure --> /bin/sh^M. 
+# 1. problem : configure --> /bin/sh^M. 
 
 	you should run . 
-	
+	```
 	$ dos2unix configure
 
 	$ dos2unix ./LINUX/configure
-
-2. problem : cannot stat 'bridge': No such or directory
-
+	```
+# 2. problem : cannot stat 'bridge': No such or directory
+	```
 	$ make clean
 
 	$ cd build-apps/bridge
 
 	$ gcc -O2 -pipe -Werror -Wall -Wunused-function -I ../../sys -I ../../apps/include -Wextra    ../../apps/bridge/bridge.c  -lpthread -lrt    -o bridge
 
 	$ sudo make && make install
-	
+	```
 
 # NtyTcp
 netmap, dpdp, pf_ring, Tcp Stack for Userspace 
 
 compile:
-
+```
 $ sudo apt-get install libhugetlbfs-dev
 
 $ make
+```
 
 update NtyTcp/include/nty_config.h  
 
@@ -53,13 +56,13 @@ update NtyTcp/include/nty_config.h
 #define NTY_SELF_MAC	"00:0c:29:58:6f:f4" //your mac
 
 block server run:
-
+```
 $ ./bin/nty_example_block_server
-
+```
 epoll server run:
-
+```
 $ ./bin/nty_example_epoll_rb_server
-
+```