docs: fix typo in multiple_interpreters (#5738)

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

Author: henryiii

include/pybind11/detail/common.h

@@ -490,7 +490,8 @@ PyModuleDef_Init should be treated like any other PyObject (so not shared across
 
     - ``mod_gil_not_used()``
     - ``multiple_interpreters::per_interpreter_gil()``
-    - ``multiple_interpreters::per_interprshareeter_gil()``
+    - ``multiple_interpreters::shared_gil()``
+    - ``multiple_interpreters::not_supported()``
 
     .. code-block:: cpp
 

include/pybind11/embed.h

@@ -43,7 +43,8 @@
 
     - ``mod_gil_not_used()``
     - ``multiple_interpreters::per_interpreter_gil()``
-    - ``multiple_interpreters::per_interprshareeter_gil()``
+    - ``multiple_interpreters::shared_gil()``
+    - ``multiple_interpreters::not_supported()``
 
     .. code-block:: cpp