Update C++23 "deducing this" config docs

Author: neatudarius

CMakeLists.txt

@@ -24,7 +24,7 @@ beman_iterator_check_deducing_this(COMPILER_SUPPORTS_DEDUCING_THIS)
 set(TARGETS_EXPORT_NAME ${CMAKE_PROJECT_NAME}Targets)
 
 option(BEMAN_ITERATOR_INTERFACE_USE_DEDUCING_THIS
-       "Make use of deducing this. Turn this off for non-conforming compilers."
+       "Make use of C++23 "deducing this" feature (P0847R7). Turn this off for non-conforming compilers."
        ${COMPILER_SUPPORTS_DEDUCING_THIS})
 
 option(ITERATOR_INTERFACE_ENABLE_TESTING