docs: Add Plausible analytics (#165)

docs/overrides/partials/integrations/analytics/custom.html

@@ -0,0 +1,6 @@
+<!-- Privacy-friendly analytics by Plausible -->
+<script async src="https://plausible.nijho.lt/js/pa-NRX7MolONWKTUREJpAjkB.js"></script>
+<script>
+  window.plausible=window.plausible||function(){(plausible.q=plausible.q||[]).push(arguments)},plausible.init=plausible.init||function(i){plausible.o=i||{}};
+  plausible.init()
+</script>

zensical.toml

@@ -26,6 +26,7 @@ nav = [
 ]
 
 [project.theme]
+custom_dir = "docs/overrides"
 language = "en"
 
 features = [
@@ -81,6 +82,9 @@ repo = "lucide/github"
 [project.extra]
 generator = false
 
+[project.extra.analytics]
+provider = "custom"
+
 [[project.extra.social]]
 icon = "fontawesome/brands/github"
 link = "https://github.com/basnijholt/compose-farm"