Updated readme.

README.md

@@ -1,31 +1,93 @@
+
 # infrastructure-cognitive-search
-A library to provide an accessible API for working with Azure cognitive search. The package contains a fully configured
+A library to provide an accessible API for working with Azure cognitive search. The package contains a fully configured default service for searching by keyword, as well as a geo-location service which allows searches to be made by town, or post-code. The package is intended to take the heavy-lifting away in terms of setup and configurartion and allow for an easy, pluggable set of components that can be used across projects. 
+
 
-# Package readme title, e.g., display name or title of the package (optional)
+## Getting Started
+In order to leverage the search functionality it is necessary to register a number of default dependencies. The dependencies can be used in isolation or registered as a whole under a single composition root, as below.
 
-Start with a clear and concise description: A brief overview of what your package is and does, also what problem it solves.
+### Prerequisites
 
-## Getting started
+In order to use the default search services it is possible to register all dependcies listed under the default composition root, in one registration, as follows:
 
-Explain how to use your package, provide clear and concise getting started instructions, including any necessary steps.
+```
+builder.Services.RegisterDefaultSearchServices(builder.Configuration);
+```
 
-### Prerequisites
+Alternatively, the registrations can be configured in the consuming application IOC container, with a typical registration configured as follows:
+
+```
+builder.Services.AddAzureCognitiveSearchProvider(builder.Configuration);
+builder.Services.AddScoped(typeof(ISearchServiceAdapter), typeof(CognitiveSearchServiceAdapter<Infrastructure.Establishment>));
+builder.Services.AddScoped<IUseCase<SearchByKeywordRequest, SearchByKeywordResponse>, SearchByKeywordUseCase>();
+builder.Services.AddSingleton(typeof(IMapper<Response<SearchResults<Infrastructure.Establishment>>, EstablishmentResults>), typeof(AzureSearchResponseToEstablishmentResultMapper));
+builder.Services.AddSingleton<IMapper<SearchSettingsOptions, SearchOptions>, SearchOptionsToAzureOptionsMapper>();
+builder.Services.AddSingleton<IMapper<SearchByKeywordResponse, SearchResultsViewModel>, SearchByKeywordResponseToViewModelMapper>();
+builder.Services.AddSingleton<IMapper<Infrastructure.Establishment, Search.Establishment>, AzureSearchResultToEstablishmentMapper>();
+builder.Services.AddSingleton<IMapper<EstablishmentResults, SearchByKeywordResponse>, ResultsToResponseMapper>();
+
+builder.Services.AddOptions<SearchSettingsOptions>("establishments")
+    .Configure<IConfiguration>(
+        (settings, configuration) =>
+            configuration.GetSection("AzureCognitiveSearchOptions:SearchEstablishment:SearchSettingsOptions").Bind(settings));
+
+builder.Services.AddScoped<ISearchOptionsFactory, SearchOptionsFactory>();
+```
+### Code Usage/Examples
+
+Typical dependency injection and search request would look something like the following,
+
+```
+public class HomeController : Controller
+{
+    private readonly IUseCase<SearchByKeywordRequest, SearchByKeywordResponse> _searchByKeywordUseCase;
+    private readonly IMapper<SearchByKeywordResponse, SearchResultsViewModel> _mapper;
+
+    public HomeController(
+        ILogger<HomeController> logger,
+        IUseCase<SearchByKeywordRequest, SearchByKeywordResponse> searchByKeywordUseCase,
+        IMapper<SearchByKeywordResponse, SearchResultsViewModel> mapper)
+    {
+        _searchByKeywordUseCase = searchByKeywordUseCase;
+        _mapper = mapper;
+    }
+
+    public async Task<IActionResult> Index(string searchKeyWord)
+    {
+        if (string.IsNullOrEmpty(searchKeyWord))
+        {
+            return View();
+        }
+        ViewBag.SearchQuery = searchKeyWord;
+
+        SearchByKeywordResponse response =
+            await _searchByKeywordUseCase.HandleRequest(
+                new SearchByKeywordRequest(searchKeyWord, "establishments"));
+
+        SearchResultsViewModel viewModel = _mapper.MapFrom(response);
+        return View(viewModel);
+    }
+}
+```
+
+## Built With
+
+* [.Net 8](https://learn.microsoft.com/en-us/dotnet/core/whats-new/dotnet-8/overview) - Core framework used
+* [Azure](https://learn.microsoft.com/en-us/azure/search/) - Cloud services provider (cognitive search)
 
-What are specific minimum requirements to use your packages? Consider excluding this section if your package works without any additional setup beyond simple package installation.
 
-## Usage
+## Versioning
 
-Examples about how to use your package by providing code snippets/example images, or samples links on GitHub if applicable. 
+We use [SemVer](http://semver.org/) for versioning. For the versions available, see the [tags on this repository](https://github.com/your/project/tags). 
 
-- Provide sample code using code snippets
-- Include screenshots, diagrams, or other visual help users better understand how to use your package
+## Authors
 
-## Additional documentation
+* **Spencer O'Hegarty** - *Initial work*
+* **Catherine Lawlor**
+* **Asia Witek**
 
-Provide links to more resources: List links such as detailed documentation, tutorial videos, blog posts, or any other relevant documentation to help users get the most out of your package.
+## License
 
-## Feedback
+This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md) file for details
 
-Where and how users can leave feedback?
 
-- Links to a GitHub repository where could open issues, Twitter, a Discord channel, bug tracker, or other platforms where a package consumer can connect with the package author.