content: Update README

Author: Sketch Developer

README.md

@@ -6,6 +6,7 @@ A list of Sketch plugins hosted at GitHub, in alphabetical order.
 
 - [Abstract](https://goabstract.com/), by Abstract: Abstract lets you manage, version, and document your designs in one place
 - [AEUX](https://github.com/google/sketch2ae), by Battle Axe: Transfer layer to After Effects
+- [ArrangeIt](https://leohans.gumroad.com/l/arrangeit), by Leonardo Hancevich: Arrange page-level layers by name
 - [Artboard Tools](https://github.com/frankko/artboard-tools), by Frank Kolodziej: Sketch.app plugins for arranging artboards and navigating between artboards.
 - [autorename](https://github.com/dchahla/autorename), by dchahla: Lightweight, low-fi Auto Name Group ( ⌘ + g ) Sketch Plugin
 - [Awesome Ipsums](https://github.com/inVoltag/awesome-ipsums), by Aurélien Grimaud: Generate ipsums from an external Google spreadsheet. Make these datas collaborative!