diff --git a/README.md b/README.md
index d8ae7d2..823c71d 100644
--- a/README.md
+++ b/README.md
@@ -9,17 +9,22 @@
 ### Development
 
 ##### To start in development mode you must:
+
 1. Install the dependencies `npm install`.
 
-2. Go to the linx-devops project and run the `create_certificate_for_domain.sh` script from `private-system-trusted-cert`, it expects an ip/domain as the first argument.
-   ex: `sh create_certificate_for_domain.sh 192.168.1.199`
-   (Use your private IP-address)
+2. Go to the `linx-devops/scaling-tools/private-system-truste-cert` project and generate a new server certificate and key:
+
+        sh create_certificate_for_domain.sh 192.168.1.110 #local IP
+        # generates files
+        nginx-selfsigned.crt
+        device.key
 
 3. You need to update the Video Server in the provisioning to point to your private IP. ex: https://192.168.1.199:3000
 
 4. The generated files must be moved to server/ssl and renamed as follows:
-- device.key -> key.pem
-- nginx-selfsigned.crt -> cert.pem
+
+        cp device.key  {mediasoup_project}/server/ssl/key.pem
+        cp nginx-selfsigned.crt {mediosup_project}/server/ssl/cert.pem
 
 5. Go to https://dev.linx.safemobile.com/dispatcher/resources/help/LINXHelp.html#safemobile-certificate-import and import the certificate for your system type