docs: use correct env var name for cache cleanup (#125)

Frostman · web-flow · commit 50b6f7940af3 · 2025-03-19T03:40:28.000+01:00
Signed-off-by: Sergei Lukianov &lt;me@slukjanov.name&gt;
diff --git a/docs/content/1.getting-started/1.index.md b/docs/content/1.getting-started/1.index.md
@@ -58,7 +58,7 @@ variant: subtle
 ---
 ::
 
-#### `CLEANUP_OLDER_THAN_DAYS`
+#### `CACHE_CLEANUP_OLDER_THAN_DAYS`
 
 - Default: `90`
 
