diff --git a/README.md b/README.md
index de6fd20a9bb01a803c950a1bc2dc8ef693ae273e..74ad0f799bbdd0a8881105baf296f0e0ae6892c9 100644
--- a/README.md
+++ b/README.md
@@ -57,8 +57,11 @@ there are only two parameters other than the input data
 the dataset should be in long format with the following exact columns
 
 SID: subject id, numerical or characters as long as uniquely identifies individual subjects
+
 RID: reader id, numerical number only, should uniquely identify each individual reader
-MID: method id, either "T" (new test) or "R" (reference). 
+
+MID: method id, either "T" (new test) or "R" (reference)
+
 val: the actual measurement, numeric only
 
 repeated measurements from the same reader on the same subject using the same method can be recorded as multiple rows with the same SID, RID and MID and different val. (i.e. there is no need to specify session ID) The algorithm automatically detect and adjust for intra-reader repeated reads.