Update the readme

README.md

@@ -3,12 +3,12 @@ Mirobot Chassis
 
 This repository contains the files that are needed to laser cut the chassis for Mirobot (http://mirobot.io). There are a few different files here:
  - mirobot_chassis_design.pdf - this is the main working file for Mirobot, but can't be used for laser cutting. It can be edited in Illustrator
- - mirobot_chassis_lasercut.pdf / .dxf / .svg - these files are the laser-cuttable outlines laid out for cutting as pdf, svg and dxf file types
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+ - mirobot_chassis_lasercut.pdf - these files are the laser-cuttable outlines laid out for cutting as pdf. SVG and DXF are available in the [releases](https://github.com/bjpirt/mirobot-chassis/releases)
+
 These designs are currently designed to be cut from 3mm MDF board.
 
 This repository is in a state of development, see the [releases](https://github.com/bjpirt/mirobot-chassis/releases) for known good snapshots. No guarantees are made - laser cut at your own risk!
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+
 Licensing
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