HTTP3: show an --alt-svc using example too

diff --git a/docs/HTTP3.md b/docs/HTTP3.md
index f063ab4f96693f49caaded245df83bfa1e1c71c7..06783c007684e6b8248a9e4aeadd119c88e43158 100644 (file)
--- a/docs/HTTP3.md
+++ b/docs/HTTP3.md
@@ -75,8 +75,14 @@ you'll just get ld.so linker errors.
 
 ## Invoke from command line
 
+Use HTTP/3 directly:
+
     curl --http3 https://nghttp2.org:8443/
 
+Upgrade via Alt-Svc:
+
+    curl --alt-svc altsvc.cache https://quic.aiortc.org/
+
 # quiche version
 
 ## build