diff --git a/docs/advanced-usage.md b/docs/advanced-usage.md
index 985c494..27dd169 100644
--- a/docs/advanced-usage.md
+++ b/docs/advanced-usage.md
@@ -12,6 +12,8 @@ If for some reason, you don't want the plugin to output `
` tags on each p
```
+This will remove output for ``, `` and ``; you can define each of them on your side if needed.
+
### Author information
Author information is used to propagate the `creator` field of Twitter summary cards. This should be an author-specific, not site-wide Twitter handle (the site-wide username be stored as `site.twitter.username`).