build: fix for zola 0.19

i love when they introduce breaking changes and don't document it
anywhere :)

Author: nyadiia

config.toml

@@ -2,8 +2,7 @@ base_url = "https://acm.umn.edu/"
 build_search_index = false
 compile_sass = true
 generate_feeds = true
-feed_filename = "rss.xml"
-highlight_code = true
+feed_filenames = [ "rss.xml" ]
 title = "ACM UMN"
 
 # Enable if you want to check, but this is slow and dip doesn't send us back logs afaik.
@@ -13,6 +12,14 @@ taxonomies = [
     {name = "tags", rss = true}
 ]
 
+[markdown]
+highlight_code = true
+
+[slugify]
+paths = "on"
+taxonomies = "on"
+anchors = "on"
+
 [extra]
 nav_links = [
 	{ url = "/room", text = "Room" },

content/old-events/_index.md

@@ -1,5 +1,5 @@
 +++
-slug = "_index"
+# slug = "_index"
 template = "old-events.html"
 sort_by = "date"
 +++