add build-timestamp token into docs

AGulev · AGulev · commit 0064f58df074 · 2025-07-04T08:12:03.000+02:00
diff --git a/docs/en/manuals/html5.md b/docs/en/manuals/html5.md
@@ -191,6 +191,9 @@ DEFOLD_HEAP_SIZE
 DEFOLD_ENGINE_ARGUMENTS
 : Engine arguments specified in *game.project* `html5.engine_arguments` separated by `,` symbol.
 
+build-timestamp
+: Current build timestamp in seconds.
+
 
 ## Extra parameters
 
