explain a bit mapping "Meaning of category on movement" -> Inventory API parameter

README.md

@@ -169,6 +169,10 @@ Movements have various source / destination categories and it seems that this li
 |Source Administration/Destination Administration | Who is in charge of administrative tasks related to this movement |
 
 
+Physical location is queried using *node* inventory API parameter.
+To query ownership, we use *section*.
+To query payment, we use *payment*.
+For the project, we use *project*.