diff --git a/README.md b/README.md
index 50df4c8..37fa53f 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,14 @@
 # Gandi Dynamic DNS
 
-Cron job to auto update a DNS record when WAN IP changes using Gandi Live DNS API on Debian GNU/Linux
+Cron job to auto update DNS records when WAN IP changes using Gandi Live DNS API on Debian GNU/Linux
 
-## To install 
+## Requirements
++ Debian GNU/Linux 10 (Buster)
++ curl : `apt-get install curl`
++ dig : `apt-get install dnsutils`
 
+## Install 
+Fetch script from git repo, install and configure
 ```
 git clone https://gitlab.com/lab.8916100448256/gandi-dynamic-dns.git ./gandi-dynamic-dns
 cd ./gandi-dynamic-dns
@@ -12,8 +17,13 @@ sudo bash ./install.sh
 
 Then configure DNS record info and API key in file /etc/live-dns/live-dns.conf
 
+```
+nano /etc/live-dns/live-dns.con
+```
+
 
 ## How it works
+
 ### /etc/cron.d/live-dns-update
 Cron job definition to check for WAN IP change and call Live DNS API to update the DNS record if necessary. By default runs the check/update script 2 times per hour, at every hour past 12 and 42 minutes.
 
@@ -30,7 +40,7 @@ Check this page if you don't know your APIKey : https://docs.gandi.net/en/domain
 This is the script that is called by the cron job.
 
 + First the WAN (external) IPV4 and IPV6 adresses are determined using http://me.gandi.net
-+ Then they are compared to DNS records for the configured host and domain.
++ Then they are compared to the A and AAAA DNS records for the configured host and domain.
 + In case of mismatch Gandi live DNS API is called to update the DNS records
 
 Information logs are written to system log. Exemple :