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

@@ -974,43 +974,41 @@ If you need to compare the ``datetime`` and ``interval`` object values, you can
 
 Support for relational operators for ``interval`` objects has been added since :doc:`2.11.0 </release/2.11.0>`.
 
-        **Example 1:**
+**Example 1:**
 
-        ..  code-block:: tarantoolsession
+..  code-block:: tarantoolsession
 
-            tarantool> dt1 = datetime.now()
-            ---
-            ...
+    tarantool> dt1 = datetime.now()
+    ---
+    ...
 
-            tarantool> dt2 = datetime.now()
-            ---
-            ...
+    tarantool> dt2 = datetime.now()
+    ---
+    ...
 
-            tarantool> dt1 == dt2
-            ---
-            - false
-            ...
+    tarantool> dt1 == dt2
+    ---
+    - false
+    ...
 
-            tarantool> dt1 < dt2
-            ---
-            - true
-            ...
+    tarantool> dt1 < dt2
+    ---
+    - true
+    ...
 
-        **Example 2:**
+**Example 2:**
 
-        ..  code-block:: tarantoolsession
-
-            tarantool> iv1 = datetime.interval.new({month = 1})
-            ---
-            ...
+..  code-block:: tarantoolsession
 
-            tarantool> iv2 = datetime.interval.new({month = 2})
-            ---
-            ...
+    tarantool> iv1 = datetime.interval.new({month = 1})
+    ---
+    ...
 
-            tarantool> iv1 < iv2
-            ---
-            - true
-            ...
+    tarantool> iv2 = datetime.interval.new({month = 2})
+    ---
+    ...
 
-            tarantool>
+    tarantool> iv1 < iv2
+    ---
+    - true
+    ...