Add esi example to docs

zkat · web-flow · commit ab689a5c9a8b · 2025-09-16T13:46:37.000-07:00
diff --git a/examples/esi.cpp b/examples/esi.cpp
@@ -1,3 +1,4 @@
+//! @example esi.cpp
 #include "fastly/sdk.h"
 
 int main() {
