diff --git a/B_Root_Anomalies/B_Root_Anomaly-20170221/README.md b/B_Root_Anomalies/B_Root_Anomaly-20170221/README.md
index 690ef5d..4341a16 100644
--- a/B_Root_Anomalies/B_Root_Anomaly-20170221/README.md
+++ b/B_Root_Anomalies/B_Root_Anomaly-20170221/README.md
@@ -1,4 +1,4 @@
-== How to run the tagging code
+# How to run the tagging code
 
 ```
 tag -s 1487659200 -e 1487695200  -r <path-to-folder-w-traces> -E lax  -q .jiang.com -q .phone.tianxintv.cn -q clgc88.com