Update get_started.md (#11539)

* Support tensors as dropout rates again, by removing the min(max(..)..) clipping
that throws TypeError for tensors.

PiperOrigin-RevId: 157000504

* Patch release PR. Updating versions to 1.2.1. Updating the release notes. Updating markdown version. Patching Github issue 11005.

* Fix for contrib.layers test that was raising an IndexError (#11069)

* variable name change and documentation clarification

* Updated a test to eliminate an error it raises

* Updating release.md.

* Allowing the PIP_TEST_ROOT variable to be set.

PiperOrigin-RevId: 161087696

* Update get_started.md

Fix various errors in print out statements and unnecessary lines of code