doc: fix references to running behind NAT in the README

Author: hberntsen

README.md

@@ -19,7 +19,7 @@ This repository contains the necessary tools to run a Jitsi Meet stack on [Docke
   - [Design considerations](#design-considerations)
 * [Configurations](#configuration)
   - [Advanced configuration](#advanced-configuration)
-  - [Running on a LAN environment](#running-on-a-lan-environment)
+  - [Running behind NAT or on a LAN environment](#running-behind-nat-or-on-a-lan-environment)
 * [Build Instructions](#build-instructions)
 * [ToDo](#todo)
 

env.example

@@ -17,7 +17,7 @@ TZ=Europe/Amsterdam
 # Public URL for the web service.
 #PUBLIC_URL=https://meet.example.com
 
-# IP address of the Docker host. See the "Running on a LAN environment" section
+# IP address of the Docker host. See the "Running behind NAT or on a LAN environment" section
 # in the README.
 #DOCKER_HOST_ADDRESS=192.168.1.1