Add lua memory option

doc/reference/configuration/configuration_reference.rst

@@ -3133,6 +3133,35 @@ log.syslog.*
     | Default: box.NULL
     | Environment variable: TT_LOG_SYSLOG_SERVER
 
+.. _configuration_reference_lua:
+
+lua
+---
+
+The ``lua`` section outlines the configuration parameters related to the ``lua`` environment within Tarantool.
+
+Below is an overview of the available configuration options for ``lua``:
+
+- :ref:`lua.memory <configuration_reference_lua>`
+
+
+.. _configuration_reference_lua_memory:
+
+.. confval:: lua.memory
+
+Specifies the amount of memory allocated to ``lua``, measured in bytes.
+
+- **Type**: integer
+- **Default Value**: 2GB
+- **Minimum Value**: 256MB
+
+
+**Dynamic adjustment behavior:**
+
+- If the specified value is **greater** than the current memory usage, the new limit is applied immediately without requiring a restart.
+- If the specified value is **less** than the current memory usage, a **restart** of the instance is required for the change to take effect.
+
+
 ..  _configuration_reference_memtx:
 
 memtx