Documentation, issue #45.

json.go

@@ -12,6 +12,7 @@ import (
 // JSON returns a value that can be used as an argument to
 // [database/sql.DB.Exec], [database/sql.Row.Scan] and similar methods to
 // store value as JSON, or decode JSON into value.
+// JSON should NOT be used with [BindJSON] or [ResultJSON].
 func JSON(value any) any {
 	return jsonValue{value}
 }