another deliberate mistake fixed

lab-7/cgi-bin/splash.py

@@ -20,6 +20,7 @@ import utils
 db = utils.db_connect( config )
 
 # render header HTML
+print("Content-Type: text/html\n")
 print( utils.render_template( config['TEMPLATE_DIR'] + 'header.html') )
 
 # get the form data