Updated Wiki: Adding Custom Repositories

[TestMethod]
publicvoid GetCustomRepositoryFromOtherRepository()
{
    // Setup custom repositories e.g. IAzureBlobRepositoryvar factories = new Dictionary<Type, Func<dynamic>>
    {
        {
            typeof (IAzureBlobRepository<MyBlob>),
            () => new AzureBlobRepository<MyBlob>()
        }
    };

    IRepositoryProvider repositoryProvider = 
        new RepositoryProvider(new RepositoryFactories(factories));

    using (IDataContextAsync context = new NorthwindFakeContext())
    using (IUnitOfWorkAsync uow = new UnitOfWork(context, repositoryProvider))
    {
        IRepositoryAsync<Product> productRepository = 
            new Repository<Product>(context, uow);

        // Retrieving custom repository from UnitOfWork instancevar blobRepository1 = 
            uow.GetCustomRepository<IAzureBlobRepository<MyBlob>>();

        // Retrieving custom repository from another repositoryvar blobRepository2 = 
            productRepository.GetCustomRepository<IAzureBlobRepository<MyBlob>>();

        Assert.AreEqual(blobRepository1.SayHello(), "Hello World!");
        Assert.AreEqual(blobRepository2.SayHello(), "Hello World!");
    }
}