add c# quickstart

content/docs/csharp/tracing.md

@@ -4,6 +4,35 @@ title: "Tracing"
 
 This page contains documentation for OpenTelemetry .NET.
 
+**Note**: OpenTelemetry .NET is in _alpha_ and should not be deployed to production systems.
+
 # Quick Start
 
+1. Install OpenTelemetry via [NuGet](https://www.nuget.org/packages/OpenTelemetry) along with an exporter such as [Zipkin](https://www.nuget.org/packages/OpenTelemetry.Exporter.Zipkin) or [Jaeger](https://www.nuget.org/packages/OpenTelemetry.Exporter.Jaeger).
+2. Create a `Tracer` through the `TracerFactory`, as shown:
+
+```
+var tracerFactory = TracerFactory.Create(
+                                  builder => builder.AddProcessorPipeline(
+                                  c => c.SetExporter(new JaegerTraceExporter(jaegerOptions))));
+```
+
+3. Get a reference to your `Tracer` from the `TracerFactory` using the `GetTracer()` method.
+4. Start a span, then add attributes or events to it as desired, as seen here:
+
+```
+using (tracer.StartActiveSpan("test", out var span))
+{
+  span.SetAttribute("custom-attribute", 219);
+  span.AddEvent("hello world");
+}
+// the span will automatically complete when it goes out of scope here.
+```
+
+You can find more exporters and examples of how to use them [here](https://github.com/open-telemetry/opentelemetry-dotnet/tree/master/samples/Exporters).
+
+See the [README](https://github.com/open-telemetry/opentelemetry-dotnet/blob/master/README.md) for the most up-to-date information on configuring and using OpenTelemetry .NET.
+
 # API Reference
+
+Please see the [GitHub Repository](https://github.com/open-telemetry/opentelemetry-dotnet) for more information on the API.