Update README.md

README.md

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-# LibPostalClient
+# LibPostalClient
+
+![](https://raw.githubusercontent.com/NHSISL/LibPostalClient/main/Resources/LibPostalClientBanner.png)
+[![Build](https://github.com/NHSISL/LibPostalClient/actions/workflows/build.yml/badge.svg)](https://github.com/NHSISL/LibPostalClient/actions/workflows/build.yml)
+[![The Standard - COMPLIANT](https://img.shields.io/badge/The_Standard-COMPLIANT-2ea44f)](https://github.com/hassanhabib/The-Standard)
+
+# Introduction
+The NEL.LibPostalClient is a Standard compliant wrapper for libpostal (https://github.com/openvenues/libpostal) which parses and normalises addresses. It is designed to take unstructured address data, such as a mailing address written in natural language, and convert it into a structured format that can be more easily processed by software systems.
+
+# Key Features
+## Address Parsing: 
+Libpostal can break down an address into its constituent components, such as street names, cities, states, postal codes, and more. This makes it easier to work with address data programmatically.
+
+## Address Normalization: 
+It can normalize addresses to a consistent format, reducing variations and inconsistencies that may exist in address data.