PR #33475: [ROCm] Updating the README.md with ROCm CSB links

Imported from GitHub PR https://github.com/tensorflow/tensorflow/pull/33475

Minor change to the README, adding both TF 1.15 and 2.x releases to the list of ROCm CSB links

CC:  @sunway513
Copybara import of the project:

--
97f8bb35fbe2eace9499e2242eec54de0114a0c6 by Jeff Poznanovic <jeffrey.poznanovic@amd.com>:

Updating the README.md with ROCm CSB links

Minor change to the README, adding both TF 1.15 and 2.x releases to the list of ROCm CSB links

COPYBARA_INTEGRATE_REVIEW=https://github.com/tensorflow/tensorflow/pull/33475 from parallelo:patch-1 97f8bb35fbe2eace9499e2242eec54de0114a0c6
PiperOrigin-RevId: 275917433
Change-Id: I11ebf8c64ebc66e55316ea503ede2834a39676a4

README.md

@@ -113,7 +113,7 @@ Build Type               | Status
 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 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 [1.15](http://ml-ci.amd.com:21096/job/tensorflow-rocm-release/lastSuccessfulBuild/) / [2.x](http://ml-ci.amd.com:21096/job/tensorflow-rocm-v2-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/)