Update README document with updated documentation (#346)

* Update README document

Author: Ignacio Bonafonte

README.md

@@ -34,18 +34,40 @@ or
 .target(name: "ExampleApp", dependencies: ["OpenTelemetrySdk"]),
 ```
 
+## Documentation
+
+Official documentation for the library can be found in the official opentelemetry [documentation  page](https://opentelemetry.io/docs/instrumentation/swift/), including:
+
+ * Documentation about installation and [manual instrumentation](https://opentelemetry.io/docs/instrumentation/swift/manual/)
+    
+* [Libraries](https://opentelemetry.io/docs/instrumentation/swift/libraries/) that provide automatic instrumentation
+
 ## Current status
-<!--Please note: 
-Tracing spec follows version 1.0.1 and should be considered stable.
-Metrics support is in beta, and the spec is still not following latest approved spec.
-Semantic Conventions and OpenTracing shim are also experimental.
---> 
 
-Currently Tracing, Metrics and Baggage API's and SDK are implemented, also OpenTracing shim, for compatibility with existing Opentracing code.
+### API and SDK
+
+Tracing and Baggage should be considered stable
+
+Metrics is implemented using an outdated spec, is fully functional but will change in the future
+
+Logs are currently in development
+
+### Supported exporters, importers and instrumentation libraries
+
+#### Traces
+* Exporters: Stdout, Jaeger, Zipkin, Datadog and OpenTelemetry (OTLP) collector
+* Importers: OpenTracingShim
+
+#### Metrics 
+* Exporters: Prometheus, Datadog, and OpenTelemetry (OTLP) collector
+* Importers: SwiftMetricsShim
 
-Implemented traces exporters: Stdout, Jaeger, Zipkin, Datadog and OpenTelemetry collector
+#### Instrumentation libraries
+* URLSession
+* NetworkStatus
+* SDKResourceExtension
+* SignPostIntegration
 
-Implemented metrics exporters: Prometheus, Datadog, and OpenTelemetry collector
 
 ## Examples