feat: Add missing explore-membership redirect

• feat: Add missing explore-membership redirect

Relates to #505 (closed)

config/nginx/default.conf

@@ -121,6 +121,7 @@ server {
     rewrite ^/membership/vote2011/ /membership/vote-2011/ redirect;
     rewrite ^/membership/vote2019/ /membership/vote-2019/ redirect;
     rewrite ^/membership/vote2020/ /membership/vote-2020/ redirect;
+    rewrite ^/membership/exploreMembership.php$ /membership/explore-membership/ permanent;
     location ~ ^/membership/become_a_member/\w*\.php$ {
       # match index.php and all subpages of become_a_member and redirect to
       # /membership/#tab-membership