fix (tutorials): fix obsolete function-names in tutorial 1

Marlon Schumacher

20.11.23 b0aee6694cad6599e6142f9767dae1125b42ae60

 .gitignore

@@ -1,11 +1,10 @@
# MacOS Finder files
.DS_Store

# LispWorks files
*.*fasl
*.*~
*.lisp~
*.lisp#
*.*~
*.*#

# OM Reference files
/reference-pages/