Stop using deprecated functions

- Replace getCSV with resources.Get | transform.Unmarshal. This required
  moving my CSV data to the assets directory, for some reason. Ugh.
- Switch from site.LastChange to site.Lastmod.

.gitignore

@@ -10,7 +10,7 @@ old/
 public/
 public_*/
 .hugo_build.lock
-csv/webrings.csv
+assets/csv/webrings.csv
 results/
 linter-configs/htmltest/
 public.eac

layouts/_default/list.atom.xml

@@ -63,7 +63,7 @@
 	<admin:errorReportsTo xmlns:admin="http://webns.net/mvcb/" rdf:resource="mailto:{{ .Site.Author.email }}" />
 	<rights type="text">Copyright © {{ now.Year }} Rohan Kumar</rights>
 	<link rel="license" type="application/rdf+xml" href="https://creativecommons.org/licenses/by-sa/4.0/rdf" />
-  <updated>{{ site.LastChange.UTC.Format "2006-01-02T15:04:05-07:00" | safeHTML }}</updated>
+  <updated>{{ site.Lastmod.UTC.Format "2006-01-02T15:04:05-07:00" | safeHTML }}</updated>
 	<generator uri="https://gohugo.io/" version="{{ .Site.Hugo.Version }}">Hugo {{ .Site.Hugo.Version }}</generator>
   <id>{{ .Permalink }}</id>
   {{ range $pages -}}

layouts/partials/webmentions/rewrites.html

@@ -1,5 +1,5 @@
 {{- $rewritesDict := dict "" "" -}}
-{{- range $i, $r := (getCSV "," "/csv/rewrites.csv") -}}
+{{- range $i, $r := (resources.Get "csv/rewrites.csv" | transform.Unmarshal) -}}
 	{{- $rewritesDict = merge $rewritesDict (dict (index $r 0) (index $r 1)) -}}
 {{- end -}}
 {{- return $rewritesDict -}}

layouts/partials/webrings.html

@@ -6,7 +6,7 @@
 	{{- $refPol = "strict-origin" -}}
 {{- end -}}
 <h2 id="webrings">Webrings</h2>
-{{ $webringData := after 1 (getCSV "," "/csv/webrings.csv") -}}
+{{ $webringData := after 1 (resources.Get "csv/webrings.csv" | transform.Unmarshal) -}}
 <p>This site is part of {{ len $webringData }} <a href="https://en.wikipedia.org/wiki/Webring">webrings</a>. A webring is a collection of sites in a circular doubly-linked list; each website links to the next and previous site in the list.</p>
 <details>
 	<summary>Toggle webrings list</summary>

scripts/populate-webrings.sh

@@ -15,8 +15,8 @@ set -e -u
 progname="$(basename "$0")"
 dirname="$(dirname "$0")"
 
-webrings_src="$dirname/../csv/webrings.base.csv"
-webrings_dest="$dirname/../csv/webrings.csv"
+webrings_src="$dirname/../assets/csv/webrings.base.csv"
+webrings_dest="$dirname/../assets/csv/webrings.csv"
 
 help_text="Usage: $progname [OPTION...]