c++: template class with static member

README.adoc

@@ -12984,6 +12984,7 @@ Programs under link:userland/cpp/[] are examples of https://en.wikipedia.org/wik
 * link:userland/cpp/hello.cpp[]
 * templates
 ** link:userland/cpp/template.cpp[]: basic example
+** link:userland/cpp/template_class_with_static_member.cpp[]: https://stackoverflow.com/questions/3229883/static-member-initialization-in-a-class-template
 ** link:userland/cpp/if_constexpr.cpp[]: C++17 `if constexpr`
 *** https://stackoverflow.com/questions/12160765/if-else-at-compile-time-in-c/54647315#54647315
 *** https://stackoverflow.com/questions/37617677/implementing-a-compile-time-static-if-logic-for-different-string-types-in-a-co