OwnedValue -> Value

docs/contributing/contributing_functions.md

@@ -179,7 +179,7 @@ Note that for other functions it might be implemented in other location in vdbe
 ```diff
 // file vdbe/datetime.rs
 // ...
-+ pub fn exec_date(values: &[OwnedValue]) -> OwnedValue {
++ pub fn exec_date(values: &[Value]) -> Value {
 +   // ... implementation
 + }
 
@@ -238,4 +238,4 @@ An example:
 - | date()                     | No      |                              |
 + | date()                     | Yes     | partially supports modifiers |
 ...
-```
+```