📄 Update readme

Author: Julien-R44

README.md

@@ -2,7 +2,7 @@
     <img src="https://i.imgur.com/dxLBSkD.png" />
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-    <b>Draw candlesticks charts right into your terminal.</b>
+    <b>Draw candlesticks charts right into your terminal. 📈</b>
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     <a href="https://github.com/Julien-R44/cli-candlestick-chart/actions/workflows/rust.yml">