hugo: get example scripts from static/py/auto

hugo/layouts/shortcodes/highlightfile.html

@@ -7,7 +7,7 @@ Argument 1 = File path below /src/
 {{- $lang := .Get "language" | default ("python") }}
 {{- $opt := .Get "opt" | default ("linenos=table") }}
 
-{{ $path := (printf "/src/%s" $src) }}
+{{ $path := (printf "/py/auto/%s" $src) }}
 {{ $file := $path | readFile }}
 {{ highlight (print $file) $lang $opt}}