Add links to WKI

.templates/01-config_yaml.sh

@@ -11,6 +11,8 @@ if [ ! -d /config ] || ! bashio::supervisor.ping 2> /dev/null; then
     exit 0
 fi
 
+bashio::log.notice "This script is used to run custom commands at start of the addon. Instructions here : https://github.com/alexbelgium/hassio-addons/wiki/Add-Environment-variables-to-your-Addon"
+
 # Define slug
 slug="${HOSTNAME/-/_}"
 slug="${slug#*_}"