diff --git a/README.md b/README.md
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+++ b/README.md
@@ -1,2 +1,35 @@
 # letsencrypt-routeros
 Let's Encrypt certificates for RouterOS / Mikrotik
+
+###First Run
+```sh
+sudo -s
+cd /opt
+git clone https://github.com/gitpel/letsencrypt-routeros
+```
+Edit the settings file:
+```sh
+vim /opt/letsencrypt-routeros/letsencrypt-routeros.settings
+```
+Edit permissions:
+```sh
+chmod +x /opt/letsencrypt-routeros/letsencrypt-routeros.sh
+source /opt/letsencrypt-routeros/letsencrypt-routeros.settings
+```
+
+### CertBot Let's Encrypt
+Install CertBot using official manuals https://certbot.eff.org/#ubuntuxenial-other
+***In the first time you will need to create and put domain TXT record manually***
+```sh
+certbot certonly --preferred-challenges=dns --manual -d $DOMAIN --manual-public-ip-logging-ok"
+```
+follow the certbot instructions 
+
+###Usage:
+```sh
+letsencrypt-routeros.sh
+```
+or:
+```sh
+letsencrypt-routeros.sh [RouterOS User] [RouterOS Host] [SSH Private Key] [Domain]
+```