Update DataTable_API.md

Author: Roberto De Ioris

docs/DataTable_API.md

@@ -1,5 +1,18 @@
 # The DataTable API
 
+DataTables allows you to store (as an asset) a "list" (or better a dictionary) of structures.
+
+A DataTable is assigned to a UStruct, and then it can be filled with rows.
+
+Each row has a unique name and a value. That value is a structure of the DataTable-associated UStruct.
+
+So if you have a 'FWeaponStruct', you can build a DataTable full of 'FWeaponStruct's (one per-row)
+
+You can create a DataTable (in addition to creating it directly from the content browser) directly from python:
+
+```python
+```
+
 data_table_add_row(row_name, struct)
 
 data_table_remove_row(row_name)