Small updates before the first day

1 job for master in 28 seconds (queued for 7 seconds)
Name Stage Failure
failed
pages Deploy
    self.environment.handle_exception()
File "/usr/local/lib/python3.9/site-packages/jinja2/environment.py", line 925, in handle_exception
raise rewrite_traceback_stack(source=source)
File "/builds/python-uga/training-hpc/ipynb/slides_reveal.tpl", line 1, in top-level template code
{%- extends 'basic.tpl' -%}
jinja2.exceptions.TemplateNotFound: basic.tpl
make: *** [Makefile:46: ipynb/009_oop_inheritance.slides.html] Error 1
Cleaning up file based variables
ERROR: Job failed: exit code 1