docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -434,6 +434,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/kant"><img src="https://avatars1.githubusercontent.com/u/32717?v=4" width="100px;" alt=""/><br /><sub><b>Darío Hereñú</b></sub></a><br /><a href="https://github.com/ExpDev07/coronavirus-tracker-api/commits?author=kant" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/o-ba"><img src="https://avatars1.githubusercontent.com/u/8812114?v=4" width="100px;" alt=""/><br /><sub><b>Oliver</b></sub></a><br /><a href="https://github.com/ExpDev07/coronavirus-tracker-api/commits?author=o-ba" title="Documentation">📖</a></td>
     <td align="center"><a href="http://www.carmelagreco.dev"><img src="https://avatars0.githubusercontent.com/u/5394906?v=4" width="100px;" alt=""/><br /><sub><b>carmelag</b></sub></a><br /><a href="https://github.com/ExpDev07/coronavirus-tracker-api/commits?author=carmelag" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/Kilo59"><img src="https://avatars3.githubusercontent.com/u/13108583?v=4" width="100px;" alt=""/><br /><sub><b>Gabriel</b></sub></a><br /><a href="https://github.com/ExpDev07/coronavirus-tracker-api/commits?author=Kilo59" title="Code">💻</a> <a href="#infra-Kilo59" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="https://github.com/ExpDev07/coronavirus-tracker-api/commits?author=Kilo59" title="Tests">⚠️</a> <a href="https://github.com/ExpDev07/coronavirus-tracker-api/commits?author=Kilo59" title="Documentation">📖</a></td>
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