Include username in setup

src/freedombone-image-customise

 fi
 EOF
 
-    echo 'SSH_PORT=${SSH_PORT}' >> $rootdir/root/.bashrc
+    echo "MY_USERNAME=${MY_USERNAME}" >> $rootdir/root/.bashrc
+    echo "SSH_PORT=${SSH_PORT}" >> $rootdir/root/.bashrc
     echo '# initial setup of the system' >> $rootdir/root/.bashrc
     echo 'if [ -f ~/.initial_setup ]; then' >> $rootdir/root/.bashrc
     echo '    if [ -f ~/login.txt ]; then' >> $rootdir/root/.bashrc