Post-prep instructions

src/freedombone-prep

@@ -177,9 +177,11 @@ echo ''
 echo 'and use the "su" command to become the root user again. You can then load'
 echo 'the freedombone main installation script with:'
 echo ''
-echo '    apt-get -y install git'
+echo '    apt-get update'
+echo '    apt-get -y install git dialog build-essential'
 echo '    git clone https://github.com/bashrc/freedombone.git'
 echo '    cd freedombone'
+echo '    make install'
 echo ''
 echo 'Finally you can use the freedombone command to install a server configuration:'
 echo ''