#17 upd README

utils/README.md

@@ -54,4 +54,10 @@ Here is the column list and the corresponding values list for the table of visit
 ```
     column_list = ['id_site', 'json_data', 'timestamp_create', 'obs_txt']
     values_list = ['__ID__', '__JSON__', '__NOW__', 'import']
-```
+```
+
+### Populate the database
+
+Simply execute the sql files onto the database to import the data.
+
+Note that you may activate the uuid extension on the database the first time you use it (for using the function `uuid_generate_v4()`). This can be done by `CREATE EXTENSION IF NOT EXISTS "uuid-ossp";`