Update README.md

Author: marcel corso gonzalez

README.md

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 # Sachet
 
-[![Build Status](https://travis-ci.org/messagebird/sachet.svg?branch=master)](https://travis-ci.org/messagebird/sachet)
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 Sachet (or सचेत) is Hindi for conscious. Sachet is an SMS alerting tool for the [Prometheus Alertmanager](https://github.com/prometheus/alertmanager).
 
 ## The problem