diff --git a/index.md b/index.md
index 2c30763..4740802 100644
--- a/index.md
+++ b/index.md
@@ -31,6 +31,8 @@ Setup [nginx](https://www.nginx.com/) webserver. Nginx is an open source reverse
   * [nginx_maps_extra](#nginx_maps_extra)
   * [nginx_official_repo_enabled](#nginx_official_repo_enabled)
   * [nginx_reset_timedout_connection](#nginx_reset_timedout_connection)
+  * [nginx_rp_enabled](#nginx_rp_enabled)
+  * [nginx_rp_option](#nginx_rp_option)
   * [nginx_send_timeout](#nginx_send_timeout)
   * [nginx_server_names_hash_bucket_size](#nginx_server_names_hash_bucket_size)
   * [nginx_tls_certificates](#nginx_tls_certificates)
@@ -243,6 +245,7 @@ nginx_gzip_types:
 nginx_hsts_options:
   - max-age=63072000
   - includeSubDomains
+  - preload
 ```
 
 ### nginx_keepalive_timeout
@@ -296,6 +299,22 @@ nginx_official_repo_enabled: true
 nginx_reset_timedout_connection: true
 ```
 
+### nginx_rp_enabled
+
+#### Default value
+
+```YAML
+nginx_rp_enabled: true
+```
+
+### nginx_rp_option
+
+#### Default value
+
+```YAML
+nginx_rp_option: strict-origin
+```
+
 ### nginx_send_timeout
 
 #### Default value