libcurl-multi.md: added curl_multi_get_offt mention

The multi interface page didn't mention the new curl_multi_get_offt
function.

Closes #18579

diff --git a/docs/libcurl/libcurl-multi.md b/docs/libcurl/libcurl-multi.md
index 3becb648defd77556a88520129adca5a15c72ce0..27f153b8ade3c8298fb6844614cf7066386b4da4 100644 (file)
--- a/docs/libcurl/libcurl-multi.md
+++ b/docs/libcurl/libcurl-multi.md
@@ -166,7 +166,9 @@ get activity on the sockets you have been asked to wait on, or if the timeout
 timer expires.
 
 You can poll curl_multi_info_read(3) to see if any transfer has
-completed, as it then has a message saying so.
+completed, as it then has a message saying so. To know how many transfers are
+currently queued, running, pending or done, you can use the
+curl_multi_get_offt(3) function.
 
 # BLOCKING