diff --git a/index.md b/index.md
index 18b380d..e94439a 100644
--- a/index.md
+++ b/index.md
@@ -8,6 +8,7 @@ type: docs
 Setup [certbot](https://certbot.eff.org/) Let's Encrypt client.
 
 * [Default Variables](#default-variables)
+  * [certbot_bin](#certbot-bin)
   * [certbot_command_arguments](#certbot-command-arguments)
   * [certbot_config_dir](#certbot-config-dir)
   * [certbot_credentials](#certbot-credentials)
@@ -31,6 +32,10 @@ Setup [certbot](https://certbot.eff.org/) Let's Encrypt client.
 
 ## Default Variables
 
+### certbot_bin
+
+Location of the certbot binary. Default is to `~/.local/.bin/certbot`.
+
 ### certbot_command_arguments
 
 #### Default value
@@ -90,7 +95,7 @@ certbot-letsencrypt
 #### Default value
 
 ```YAML
-certbot_cron_hour: 3
+certbot_cron_hour: '3'
 ```
 
 ### certbot_cron_minute
@@ -98,7 +103,7 @@ certbot_cron_hour: 3
 #### Default value
 
 ```YAML
-certbot_cron_minute: 30
+certbot_cron_minute: '30'
 ```
 
 ### certbot_domains
@@ -136,6 +141,8 @@ certbot_log_dir: /var/log/letsencrypt
 
 ### certbot_packages_extra
 
+Extra packages to install with pip (e.g. DNS plugins).
+
 #### Default value
 
 ```YAML