docs: Fix <duration> rendering example
@@ -165,7 +165,7 @@ EdgeDB stores and outputs timezone-aware values in UTC.
db> SELECT <duration>
... '12 decades 2403 months 3987 days 12348943ms';
- {'320 years 3 mons 3987 days 03:25:48.943'}
+ {'320 years 3 months 3987 days 03:25:48.943'}
All date/time types support the ``+`` and ``-`` arithmetic operations
with time intervals:
