Add sample docs

Author: dimitrietataru

README.md

@@ -7,6 +7,90 @@
 [![Nuget | Ace.CSharp.StructuredAutoMapper.Abstractions](https://img.shields.io/nuget/v/AceCSharp.StructuredAutoMapper.Abstractions)](https://www.nuget.org/packages/AceCSharp.StructuredAutoMapper.Abstractions)
 [![Nuget | Ace.CSharp.StructuredAutoMapper.Abstractions.Test](https://img.shields.io/nuget/v/AceCSharp.StructuredAutoMapper.Abstractions.Test)](https://www.nuget.org/packages/AceCSharp.StructuredAutoMapper.Abstractions.Test)
 
+## Usage
+
+### One-way Mapping Profile
+``` csharp
+record BarEntity(Guid Id, string Value);
+record BarDto(Guid Id, string Value);
+
+class BarMappingProfile : OneWayProfile<BarEntity, BarDto>
+{
+}
+```
+
+### Two-way Mapping Profile
+``` csharp
+record FooEntity(Guid Id, string Value);
+record FooDto(Guid Id, string Value);
+
+class FooMappingProfile : TwoWayProfile<FooEntity, FooDto>
+{
+}
+```
+
+### Two-way Mapping Profile (Explicit)
+``` csharp
+class TransactionEntity
+{
+    public int Id { get; set; }
+    public Guid OperatorId { get; set; }
+
+    public DateTimeOffset ProcessedAt { get; set; }
+    public double Amount { get; set; }
+}
+
+class TransactionDto
+{
+    public int Id { get; set; }
+
+    public long ProcessedAt { get; set; }
+    public double Amount { get; set; }
+}
+
+class TransactionMappingProfile : TwoWayProfile<TransactionEntity, TransactionDto>
+{
+    public override void ConfigureLeftToRightMapping()
+    {
+        CreateMap<TransactionEntity, TransactionDto>()
+            .ForMember(
+                dto => dto.Id,
+                options => options.MapFrom(entity => entity.Id))
+            .ForMember(
+                dto => dto.ProcessedAt,
+                options => options.MapFrom(entity => entity.ProcessedAt.ToUnixTimeMilliseconds()))
+            .ForMember(
+                dto => dto.Amount,
+                options => options.MapFrom(entity => entity.Amount));
+    }
+
+    public override void ConfigureRightToLeftMapping()
+    {
+        CreateMap<TransactionDto, TransactionEntity>()
+            .ForMember(
+                entity => entity.Id,
+                options => options.MapFrom(dto => dto.Id))
+            .ForMember(
+                entity => entity.OperatorId,
+                options => options.Ignore())
+            .ForMember(
+                entity => entity.ProcessedAt,
+                options => options.MapFrom(dto => DateTimeOffset.FromUnixTimeMilliseconds(dto.ProcessedAt)))
+            .ForMember(
+                entity => entity.Amount,
+                options => options.MapFrom(dto => dto.Amount));
+    }
+}
+```
+
+## Tests
+https://github.com/dimitrietataru/ace-csharp-structured-automapper/blob/ace/src/sample/Ace.CSharp.StructuredAutoMapper.Sample.Tests/BarMappingProfileTests.cs#L8-L43
+https://github.com/dimitrietataru/ace-csharp-structured-automapper/blob/ace/src/sample/Ace.CSharp.StructuredAutoMapper.Sample.Tests/FooMappingProfileTests.cs#L8-L54
+https://github.com/dimitrietataru/ace-csharp-structured-automapper/blob/ace/src/sample/Ace.CSharp.StructuredAutoMapper.Sample.Tests/TransactionMappingProfileTests.cs#L8-L70
+
+### See also
+* [AutoMapper](https://github.com/AutoMapper/AutoMapper)
+* [FluentAssertions](https://github.com/fluentassertions/fluentassertions)
 
 ### License
 AceCSharp.StructuredAutoMapper is Copyright © 2023 [Dimitrie Tataru](https://github.com/dimitrietataru) and other contributors under the [MIT license](https://github.com/dimitrietataru/ace-csharp-structured-automapper/blob/ace/LICENSE).