message: updating README.md with information on ROCm Community Supported Builds
diff: @@ -113,6 +113,8 @@ The TensorFlow project strives to abide by generally accepted best practices in
  Build Type | Status | Artifacts
  --------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------
  +**Linux AMD ROCm GPU** Nightly | [![Build Status](http://ml-ci.amd.com:21096/job/tensorflow-rocm-nightly/badge/icon)](http://ml-ci.amd.com:21096/job/tensorflow-rocm-nightly) | [Nightly](http://ml-ci.amd.com:21096/job/tensorflow-rocm-nightly/lastSuccessfulBuild/)
  +**Linux AMD ROCm GPU** Stable Release | [![Build Status](http://ml-ci.amd.com:21096/job/tensorflow-rocm-release/badge/icon)](http://ml-ci.amd.com:21096/job/tensorflow-rocm-release/) | [Release](http://ml-ci.amd.com:21096/job/tensorflow-rocm-release/lastSuccessfulBuild/)
  **Linux s390x** Nightly | [![Build Status](http://ibmz-ci.osuosl.org/job/TensorFlow_IBMZ_CI/badge/icon)](http://ibmz-ci.osuosl.org/job/TensorFlow_IBMZ_CI/) | [Nightly](http://ibmz-ci.osuosl.org/job/TensorFlow_IBMZ_CI/)
  **Linux s390x CPU** Stable Release | [![Build Status](http://ibmz-ci.osuosl.org/job/TensorFlow_IBMZ_Release_Build/badge/icon)](https://ibmz-ci.osuosl.org/job/TensorFlow_IBMZ_Release_Build/) | [Release](https://ibmz-ci.osuosl.org/job/TensorFlow_IBMZ_Release_Build/)
  **Linux ppc64le CPU** Nightly | [![Build Status](https://powerci.osuosl.org/job/TensorFlow_PPC64LE_CPU_Build/badge/icon)](https://powerci.osuosl.org/job/TensorFlow_PPC64LE_CPU_Build/) | [Nightly](https://powerci.osuosl.org/job/TensorFlow_PPC64LE_CPU_Nightly_Artifact/)
  