diff --git a/README.md b/README.md
index 3f02b69..a306252 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,7 @@ This is a quickstart guide of how you can typically use this *LabInstance to dep
 - The host file that contains addresses of connected workers can created with:
 
 > IP_ADDR=$(ip addr show | grep "inet " | grep  "eth0" | awk '{print $2}')
+>
 > nmap -sP $IP_ADDR  | grep ondemand_mpi_worker | awk  -F "[()]" '{ for (i=2; i<NF; i+=2) print $i }' > /project/hosts
 
 - Compile
@@ -38,13 +39,9 @@ This is a quickstart guide of how you can typically use this *LabInstance to dep
 
 sudo -u mpi mpirun -n 10 -f /project/hosts  /project/mpi_hello_world
 
-<div class="panel panel-info">
-**Note**
-{: .panel-heading}
-<div class="panel-body">
-
-
 
+---
+**NOTE**
 
 ```bash
 # scp hello wrold to all clients. sudo -u mpi for auto scp connect. see /home/mpi/.ssh 
@@ -53,6 +50,5 @@ while read -r line;
    sudo -u mpi scp /project/mpi_hello_world mpi@$line:/project/mpi_hello_world
 done < /project/hosts
 ```
+---
  
-</div>
-</div>