diff --git a/docs/interlock_data.md b/docs/interlock_data.md
index d0c810fe..37f1c9fc 100644
--- a/docs/interlock_data.md
+++ b/docs/interlock_data.md
@@ -6,26 +6,27 @@ alias domains or SSL certificates.
 These are the options available to customize as well as their extension
 compatibility.
 
-|Label|Extensions Supported|
-|----|----|
-|`interlock.ext.name`               | internal |
-|`interlock.hostname`               | haproxy, nginx|
-|`interlock.domain`                 | haproxy, nginx|
-|`interlock.ssl`                    | nginx|
-|`interlock.ssl_only`               | haproxy, nginx|
-|`interlock.ssl_backend`            | haproxy, nginx|
-|`interlock.ssl_backend_tls_verify` | haproxy, nginx|
-|`interlock.ssl_cert`               | nginx|
-|`interlock.ssl_cert_key`           | nginx|
-|`interlock.port`                   | haproxy, nginx|
-|`interlock.context_root`           | haproxy, nginx|
-|`interlock.context_root_rewrite`   | haproxy, nginx|
-|`interlock.websocket_endpoint`     | nginx|
-|`interlock.alias_domain`           | haproxy, nginx|
-|`interlock.health_check`           | haproxy|
-|`interlock.health_check_interval`  | haproxy|
-|`interlock.balance_algorithm`      | haproxy|
-|`interlock.backend_option`         | haproxy|
+|Label|Extensions Supported|Description|
+|----|----|-----|
+|`interlock.ext.name`               | internal | |
+|`interlock.hostname`               | haproxy, nginx| service hostname |
+|`interlock.domain`                 | haproxy, nginx| service domain |
+|`interlock.network`                | haproxy, nginx| docker network to join and use (overlay) |
+|`interlock.ssl`                    | nginx| enable ssl |
+|`interlock.ssl_only`               | haproxy, nginx| add a redirect to the ssl service |
+|`interlock.ssl_backend`            | haproxy, nginx| use ssl for the service backend |
+|`interlock.ssl_backend_tls_verify` | haproxy, nginx| verify tls for the service backend |
+|`interlock.ssl_cert`               | nginx| name of the ssl certificate |
+|`interlock.ssl_cert_key`           | nginx| name of the ssl key |
+|`interlock.port`                   | haproxy, nginx| container port to use as the upstream |
+|`interlock.context_root`           | haproxy, nginx| context path to use for upstreams |
+|`interlock.context_root_rewrite`   | haproxy, nginx| rewrite requests before sending to upstream |
+|`interlock.websocket_endpoint`     | nginx| endpoint to use for websocket support |
+|`interlock.alias_domain`           | haproxy, nginx| one or more alias domains  for the upstream (i.e. www.example.com and example.com) |
+|`interlock.health_check`           | haproxy| haproxy health check for backend |
+|`interlock.health_check_interval`  | haproxy| interval to use for backend health check|
+|`interlock.balance_algorithm`      | haproxy| load balancing algorithm to use in haproxy|
+|`interlock.backend_option`         | haproxy| one or more backend options as specified by haproxy|
 
 # Port
 If an upstream container uses multiple ports you can select the port for