diff --git a/index.md b/index.md
index a744ce9..f41e38d 100644
--- a/index.md
+++ b/index.md
@@ -56,8 +56,8 @@ Update the system and install necessary system packages, PostgreSQL and the opti
 ```
 sudo apt-get update -y
 sudo apt-get full-upgrade -y
-sudo apt-get install -y zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libgdbm-dev libncurses5-dev automake libtool bison libffi-dev git curl poppler-utils unrtf tesseract-ocr catdoc libxml2 libxml2-dev libxslt1-dev memcached postgresql postgresql-contrib libpq-dev libsass1 libsass-dev npm nodejs
-```
+sudo apt-get install -y zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libgdbm-dev libncurses5-dev automake libtool bison libffi-dev git curl poppler-utils unrtf tesseract-ocr catdoc libxml2 libxml2-dev libxslt1-dev memcached postgresql postgresql-contrib libpq-dev libsass1 libsass-dev npm nodejs ruby
+ ```
 
 ## Expand filesystem
 Expand the filesystem to take full advantage of the size of SD card chosen;
@@ -95,6 +95,7 @@ Check PostgreSQL users and their privileges. If the CREATE DB privilege is missi
 ```
 psql
 \du
+exit
 ```
 The output should look like this: