How can I make this script better?

I was wondering if there is a better way to create a file other than appending each line to the file. I did it this way so I can preserve readability, however, there is no indentation. Is there a way to create a file and input multiple lines at once?

if [ -d "/srv/www/$1" ]; then
 echo "Domain name already exists!"
else 
 mkdir -p /srv/www/$1/public_html; 
 mkdir -p /srv/www/$1/logs; 
 echo "<VirtualHost>" > /etc/apache2/sites-available/$1
    echo "ServerAdmin support@$1" >> /etc/apache2/sites-available/$1
    echo "ServerName $1" >> /etc/apache2/sites-available/$1
    echo "ServerAlias www.$1" >> /etc/apache2/sites-available/$1
    echo "DocumentRoot /srv/www/$1/public_html/" >> /etc/apache2/sites-available/$1
    echo "ErrorLog /srv/www/$1/logs/error.log" >> /etc/apache2/sites-available/$1
    echo "CustomLog /srv/www/$1/logs/access.log combined" >> /etc/apache2/sites-available/$1
 echo "</VirtualHost>" >> /etc/apache2/sites-available/$1
 a2ensite $1

From serverfault Doug

• Use a heredoc.

  cat > /etc/apache2/sites-available/"$1" << EOF
  <VirtualHost>
  ServerAdmin support@$1
  ...
  EOF
  

  Doug : 8 minutes until you get best answer
  From Ignacio Vazquez-Abrams

• Heredoc as stated in answer #1 or just have your echo go across multiple lines

  echo "line 1
  line2
  line3" > file
  

  From Arun