Space: the tenant vhost's function location quotes its regex (nginx reads an unquoted {0,39} as a block) (#63)

ddiff --git a/deploy/nginx/openvibe.website.conf b/deploy/nginx/openvibe.website.conf
iindex 62138ad..a25a642 100644
---- a/deploy/nginx/openvibe.website.conf
++++ b/deploy/nginx/openvibe.website.conf
@@@ -20,7 +20,7 @@ server {
      add_header Strict-Transport-Security "max-age=31536000" always;
      # A space's functions (/api/<name>, server/spaces/functions.js) also take POST, a small body and the page's
      # Bearer token (the space SDK's sign-in); cookies never pass, as everywhere on a tenant host.
--    location ~ ^/api/[a-z0-9][a-z0-9-]{0,39}/?$ {
++    location ~ "^/api/[a-z0-9][a-z0-9-]{0,39}/?$" {
          limit_except GET HEAD POST { deny all; }
          client_max_body_size 64k;
          limit_req zone=ovspace_sites burst=200 nodelay;