Add Tracing documentation.

Signed-off-by: Bradley Grainger <[email protected]>

Author: bgrainger

docs/content/tutorials/tracing.md

@@ -0,0 +1,26 @@
+---
+date: 2021-10-16
+menu:
+  main:
+    parent: tutorials
+title: Tracing
+weight: 12
+---
+
+# Tracing
+
+MySqlConnector implements `ActivitySource` for tracing its operations. The `ActivitySource` name is `MySqlConnector`.
+
+The available activity names and tags are documented in [issue 1036](https://github.com/mysql-net/MySqlConnector/issues/1036).
+
+## OpenTelemetry
+
+To export traces using OpenTelemetry, install the [OpenTelemetry NuGet package](https://www.nuget.org/packages/OpenTelemetry/) and add code similar to the following:
+
+```csharp
+using var openTelemetry = Sdk.CreateTracerProviderBuilder()
+	.AddSource("MySqlConnector")
+	// add a destination, for example:
+	// .AddZipkinExporter(o => { o.Endpoint = new Uri(...); })
+	// .AddJaegerExporter(o => { o.AgentHost = "..."; o.AgentPort = 6831; })
+```