From b0dbc10e05fc4f32aef9d8bfed770bcf299216ac Mon Sep 17 00:00:00 2001
From: plampkin <83132062+plampkin@users.noreply.github.com>
Date: Sat, 24 Apr 2021 11:59:50 -0500
Subject: Update README.md

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 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 An open source photoreactor platfrom. 3D printed enclosure, commercially avaliable components, and a little bit of custom circuitry.
 
-![WPP photo](./coverart.jpg)
+![WPP photo](./coverart.png)
 
 A WPP device consists of a base, reaction module and reactor driver. The base houses the photon source and cooling fan. The reaction module consists of a  reaction chamber and  vessel holder. A digital driver board, analog driver board or simple circuit integrating a commercial light emitting diode (LED) driver can be fitted to the base to drive the reactor. Each component is highly versatile, and apparatus is fully modular.
 
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