diff --git a/scripts/hero_mdbook.sh b/scripts/hero_mdbook.sh
index d94caa1..b9b6421 100644
--- a/scripts/hero_mdbook.sh
+++ b/scripts/hero_mdbook.sh
@@ -1,63 +1,64 @@
-#!/bin/bash
-
-# Generate opening text.
-cat <<EOF
-
-* * * * *
-
-Welcome!
-
-The script will install hero and set the environment to work with mdbook.
-This will take a couple of minutes.
-
-* * * * *
-
-EOF
-
-sleep 2
-
-# Disable "Pending kernel upgrade" and  "Daemons using outdated libraries" windows
-sed -i "s/#\$nrconf{kernelhints} = -1;/\$nrconf{kernelhints} = -1;/g" /etc/needrestart/needrestart.conf
-sed -i "/#\$nrconf{restart} = 'i';/s/.*/\$nrconf{restart} = 'a';/" /etc/needrestart/needrestart.conf
-
-# Update and install dependencies
-apt-get update
-apt-get install -y lsb-release gpg
-curl https://sh.rustup.rs -sSf | sh -s -- -y
-source "$HOME/.cargo/env"
-export PATH=$PATH:/root/.cargo/bin
-curl -fsSL https://packages.redis.io/gpg | gpg --dearmor -o /usr/share/keyrings/redis-archive-keyring.gpg
-echo "deb [signed-by=/usr/share/keyrings/redis-archive-keyring.gpg] https://packages.redis.io/deb $(lsb_release -cs) main" | tee /etc/apt/sources.list.d/redis.list
-apt-get update
-apt-get install -y redis pkg-config gcc libssl-dev
-
-# Download and run the hero installer script
-curl https://raw.githubusercontent.com/freeflowuniverse/crystallib/development/scripts/installer_hero.sh > /tmp/hero_install.sh
-bash /tmp/hero_install.sh
-
-# Start the SSH agent, run hero mdbook and build the mdbook
-eval $(ssh-agent)
-hero mdbook -u https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/heroscript
-cd /root/hero/var/mdbuild/duniayetu
-mdbook build
-
-# Generate closing text after successful script.
-cat <<EOF
-
-* * * * *
-
-The script has been successfully completed.
-
-To see the mdbook live on your browser, 
-run the following command with the proper port (here we use 3333).
-
-mdbook serve --hostname 0.0.0.0 --port 3333
-
-Happy mdbooking!
-
-* * * * *
-
-EOF
-
-# Send stderr to null and exit gracefully
+#!/bin/bash
+
+# Generate opening text.
+cat <<EOF
+
+* * * * *
+
+Welcome!
+
+The script will install hero and set the environment to work with mdbook.
+This will take a couple of minutes.
+
+* * * * *
+
+EOF
+
+sleep 2
+
+# Disable "Pending kernel upgrade" and  "Daemons using outdated libraries" windows
+sed -i "s/#\$nrconf{kernelhints} = -1;/\$nrconf{kernelhints} = -1;/g" /etc/needrestart/needrestart.conf
+sed -i "/#\$nrconf{restart} = 'i';/s/.*/\$nrconf{restart} = 'a';/" /etc/needrestart/needrestart.conf
+
+# Update and install dependencies
+apt-get update
+apt-get install -y lsb-release gpg
+curl https://sh.rustup.rs -sSf | sh -s -- -y
+source "$HOME/.cargo/env"
+export PATH=$PATH:/root/.cargo/bin
+/root/.cargo/bin/cargo install mdbook
+curl -fsSL https://packages.redis.io/gpg | gpg --dearmor -o /usr/share/keyrings/redis-archive-keyring.gpg
+echo "deb [signed-by=/usr/share/keyrings/redis-archive-keyring.gpg] https://packages.redis.io/deb $(lsb_release -cs) main" | tee /etc/apt/sources.list.d/redis.list
+apt-get update
+apt-get install -y redis pkg-config gcc libssl-dev
+
+# Download and run the hero installer script
+curl https://raw.githubusercontent.com/freeflowuniverse/crystallib/development/scripts/installer_hero.sh > /tmp/hero_install.sh
+bash /tmp/hero_install.sh
+
+# Start the SSH agent, run hero mdbook and build the mdbook
+eval $(ssh-agent)
+hero mdbook -u https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/heroscript
+cd /root/hero/var/mdbuild/duniayetu
+mdbook build
+
+# Generate closing text after successful script.
+cat <<EOF
+
+* * * * *
+
+The script has been successfully completed.
+
+To see the mdbook live on your browser, 
+run the following command with the proper port (here we use 3333).
+
+mdbook serve --hostname 0.0.0.0 --port 3333
+
+Happy mdbooking!
+
+* * * * *
+
+EOF
+
+# Send stderr to null and exit gracefully
 return 2> /dev/null; exit
\ No newline at end of file