Update doc/reference/reference_lua/datetime.rst

Co-authored-by: Andrey Aksenov <38073144+andreyaksenov@users.noreply.github.com>

Author: ligurio

doc/reference/reference_lua/datetime.rst

@@ -972,7 +972,7 @@ Datetime and interval comparison
 
 If you need to compare the ``datetime`` and ``interval`` object values, you can use standard Lua relational operators: ``==``, ``~=``, ``>``, ``<``, ``>=``, and ``<=``. These operators use the overloaded ``__eq``, ``__lt``, and ``__le`` metamethods to compare values.
 
-Support of relational operators for ``interval`` objects has been added since: :doc:`2.11.0 </release/2.11.0>`.
+Support for relational operators for ``interval`` objects has been added since :doc:`2.11.0 </release/2.11.0>`.
 
         **Example 1:**