Update links to the upstream detector (#302)

* Update links to the upstream detector

* replace relative links with permalinks

detectors/resources-support/README.md

@@ -2,7 +2,7 @@
 
 [![Maven Central][maven-image]][maven-url]
 
-This library provides detection support for supported GCP environments and is intended to be consumed by the [GCP OpenTelemetry Detector](../resources/README.md).
+This library provides detection support for supported GCP environments and is intended to be consumed by the [GCP OpenTelemetry Detector](https://github.com/open-telemetry/opentelemetry-java-contrib/tree/eece7e8ef04170fb463ddf692f61d4527b50febf/gcp-resources).
 The GCP environments supported by this library are - 
 1. [Google Compute Engine](https://cloud.google.com/compute?hl=en)
 2. [Google Kubernetes Engine](https://cloud.google.com/kubernetes-engine?hl=en)
@@ -11,4 +11,4 @@ The GCP environments supported by this library are -
 5. [Google Cloud Run](https://cloud.google.com/run?hl=en)
 
 [maven-image]: https://maven-badges.herokuapp.com/maven-central/com.google.cloud.opentelemetry/detector-resources-support/badge.svg
-[maven-url]: https://maven-badges.herokuapp.com/maven-central/com.google.cloud.opentelemetry/detector-resources-support
+[maven-url]: https://maven-badges.herokuapp.com/maven-central/com.google.cloud.opentelemetry/detector-resources-support

detectors/resources/README.md

@@ -2,7 +2,7 @@
 
 [![Maven Central][maven-image]][maven-url] ![Status][deprecated]
 
-> NOTE: This artifact has moved to [Opentelemetry Java Contrib](https://github.com/open-telemetry/opentelemetry-java-contrib) repo. All future releases/updates made to this artifact would be managed in the new repository. The code for this artifact is likely to be deleted from here in the near future. 
+> NOTE: This artifact has moved to [Opentelemetry Java Contrib](https://github.com/open-telemetry/opentelemetry-java-contrib/tree/eece7e8ef04170fb463ddf692f61d4527b50febf/gcp-resources) repository. All future releases/updates made to this artifact would be managed in the new repository. The code for this artifact is likely to be deleted from here in the near future. 
 
 This package provides resource detectors for OpenTelemetry.