ci: fix site actions

deploy/Caddyfile

@@ -1,8 +1,8 @@
-# Serves the paperspec website built by `python3 tools/site.py` (the `_site/` folder), copied to /srv/paperspec.
+# Serves the paperspec website built by `python3 tools/site.py` (the `_site/` folder), copied to /srv/www/paperspec.
 # The site mirrors the repository, so every schema is served at its $id and the JSON-LD context at the address
 # layers name; this file sets the media types those addresses need and lets any page fetch them.
 paperspec.scient.ing {
-	root * /srv/paperspec
+	root * /srv/www/paperspec
 	encode zstd gzip
 
 	# Every file may be fetched from any origin: JSON-LD processors and schema validators in browsers need it.