message: Update IPU/GW link terminology
  Summary: Update legal.rst to new style
  Reviewers: #tensorflow, #framework_ip_review_-_any_oss_or_third-party_code_use_has_been_approved, georgep
  Subscribers: georgep
  Maniphest Tasks: T62282, T62283
diff: @@ -49,9 +49,9 @@ def _is_current_device_ipu():
  class PopDistStrategy(distribute_lib.StrategyV1,
  keras_extensions.KerasExtensions):
  """This is a distribution strategy for multi-replica distribution
  - that uses compiled communications with GCL for reductions over IPU
  - links and gateway links, while using Horovod for broadcasting of
  - the initial values of variables to all processes, or when a
  + that uses compiled communications with GCL for reductions over
  + IPU-Links and GW-Links. It uses Horovod for broadcasting of
  + the initial values of variables to all processes. It also uses Horovod when a
  reduction is requested with a CPU as the current device.
  This is the recommended distribution strategy when using PopDist and PopRun.
  