docs: link to timeline page from stats page

Author: ErikBjare

stats.pug

@@ -7,9 +7,13 @@ permalink: /stats/
 // Bullshit to get the page to render: https://github.com/DougBeney/jekyll-pug/issues/19#issuecomment-1131441149
 | {% if 1 %}{% endif %}
 
-p Some stats of ActivityWatch downloads, users, and stars.
+p
+  | Some stats of ActivityWatch downloads, users, and stars.
+p
+  | To make sense of what caused spikes in the graphs, see the #[a(href="/timeline/") timeline].
+p
+  | All data is collected in the #[a(href="https://github.com/ActivityWatch/stats") stats] repository.
 
-p All data is collected in the #[a(href="https://github.com/ActivityWatch/stats") stats] repository.
 
 hr.my-5