Update changelog

CHANGELOG.md

@@ -13,6 +13,7 @@
 
 ### Updated
 - Updated presenter components, load fallback image on errors ([273170c5](https://github.com/pixelfed/pixelfed/commit/273170c5))
+- Updated Story model, hide json attribute by default ([de89403c](https://github.com/pixelfed/pixelfed/commit/de89403c))
 
 ### Changed