docs: Add Neo4j example (#1013)

Co-authored-by: Andre Hofmeister <[email protected]>

Author: khalidabuhakmeh

docs/modules/neo4j.md

@@ -0,0 +1,52 @@
+# Neo4j
+
+[Neo4j](https://neo4j.com/product/neo4j-graph-database/) is a graph database designed to work with nodes and edges. It is a ACID-compliant transactional graph database engine, and developers can communicate with it using the HTTP endpoint or by using the **Bolt** protocol.
+
+The following example uses the following NuGet packages:
+
+```console title="Install the NuGet dependencies"
+dotnet add package Testcontainers.Neo4j
+dotnet add package Neo4j.Driver
+dotnet add package xunit
+```
+
+IDEs and editors may also require the following packages to run tests: `xunit.runner.visualstudio` and `Microsoft.NET.Test.Sdk`.
+
+Copy and paste the following code into a new `.cs` test file within an existing test project.
+
+```csharp
+using Neo4j.Driver;
+using Testcontainers.Neo4j;
+using Xunit;
+
+namespace TestcontainersModules;
+
+public class Neo4jContainerTest : IAsyncLifetime
+{
+    private readonly Neo4jContainer neo4jContainer
+        = new Neo4jBuilder()
+            .Build();
+
+    [Fact]
+    public async Task CanReadNeo4jDatabase()
+    {
+        const string database = "neo4j";
+
+        await using var client = GraphDatabase.Driver(neo4jContainer.GetConnectionString());
+
+        await using var session = client.AsyncSession(cfg => cfg.WithDatabase(database));
+
+        Assert.Equal(database, session.SessionConfig.Database);
+    }
+
+    public Task InitializeAsync()
+        => neo4jContainer.StartAsync();
+
+    public Task DisposeAsync()
+        => neo4jContainer.DisposeAsync().AsTask();
+}
+```
+
+To execute the tests, use the command `dotnet test` from a terminal.
+
+[xunit]: https://xunit.net/