Update README.md

Author: AnupKumarPanwar

README.md

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-# Elixir
+# The Algorithms - Elixir
+
+[![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg?logo=paypal&style=flat-square)](https://www.paypal.me/TheAlgorithms/100) 
+[![Gitter chat](https://img.shields.io/badge/Chat-Gitter-ff69b4.svg?label=Chat&logo=gitter&style=flat-square)](https://gitter.im/TheAlgorithms) 
+
+
+### All algorithms implemented in Elixir (for education)
+
+These implementations are for learning purposes. They may be less efficient than the implementations in the Elixir standard library.
+
+## Contribution Guidelines
+
+Read our [Contribution Guidelines](CONTRIBUTING.md) before you contribute.
+
+## Community Channel
+
+We're on [Gitter](https://gitter.im/TheAlgorithms)! Please join us.
+
+## List of Algorithms
+
+See our [directory](DIRECTORY.md).