Update README.md

README.md

@@ -29,7 +29,7 @@ The example of one sample is provided below
 ### Data Fields
 
 - `id`: application ID.
-- `history`: an array of transactions where each transaction is represented as a 20-dimensional array, each element of the array represents a corresponding feature from the following list.
+- `history`: an array of transactions where each credit product is represented as a 37-dimensional array, each element of the array represents a corresponding feature from the following list.
   - `id`: application ID.
   - `rn`: serial number of the credit product in the credit history.
   - `pre_since_opened`: days from the date of opening the loan to the date of data collection.