header.d: add a header file example

Closes #10455

diff --git a/docs/cmdline-opts/header.d b/docs/cmdline-opts/header.d
index 8e2103dbb3c6770bfbab98efd13e392717e66f1f..2a95c52a9cca2a4eb1552ed084166f4594419c11 100644 (file)
--- a/docs/cmdline-opts/header.d
+++ b/docs/cmdline-opts/header.d
@@ -10,6 +10,7 @@ See-also: user-agent referer
 Example: -H "X-First-Name: Joe" $URL
 Example: -H "User-Agent: yes-please/2000" $URL
 Example: -H "Host:" $URL
+Example: -H @headers.txt $URL
 Added: 5.0
 Multi: append
 ---