Update README.md

Author: amir-codefresh

README.md

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 [![Codefresh build status]( https://g-staging.codefresh.io/api/badges/build?branch=master&repoName=demochat&repoOwner=containers101&pipelineName=demochat&accountName=verchol )]( https://g-staging.codefresh.io/repositories/containers101/demochat/builds?filter=trigger:build )
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 ![Let's Chat Greylock](http://i.imgur.com/0a3l5VF.png)
 ![Screenshot](http://i.imgur.com/C4uMD67.png)
 A self-hosted chat app for small teams or big Gal by [Security Compass][seccom].