Update README.md

Author: dionisiydk

README.md

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 # Ghost
-[![Build Status](https://travis-ci.org/pharo-ide/Ghost.svg?branch=master)](https://travis-ci.org/pharo-ide/Ghost)
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+[![GitHub release](https://img.shields.io/github/release/pharo-ide/Ghost.svg)](https://github.com/pharo-ide/Ghost/releases/latest)
+[![Unit Tests](https://github.com/pharo-ide/Ghost/actions/workflows/tests.yml/badge.svg)](https://github.com/pharo-ide/Ghost/actions/workflows/tests.yml)
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+[![Pharo 7.0](https://img.shields.io/badge/Pharo-7.0-informational)](https://pharo.org)
+[![Pharo 8.0](https://img.shields.io/badge/Pharo-8.0-informational)](https://pharo.org)
+[![Pharo 9.0](https://img.shields.io/badge/Pharo-9.0-informational)](https://pharo.org)
+[![Pharo 10](https://img.shields.io/badge/Pharo-10-informational)](https://pharo.org)
+[![Pharo 11](https://img.shields.io/badge/Pharo-11-informational)](https://pharo.org)
 
 Ghost is framework to implement unnatural smalltalk objects like proxies or prototypes. It provides suitable infrastructure to implement message processing in special way