message: Removed out-of-date description of embedding lookup op
  Reviewers: #tensorflow, #framework_ip_review_-_any_oss_or_third-party_code_use_has_been_approved, jamiep, georgep
  Subscribers: georgep, manueles
  Maniphest Tasks: T18385
diff: @@ -30,9 +30,10 @@ See :py:func:`tensorflow.python.ipu.rand_ops.dropout`.
  Embedding lookup
  ~~~~~~~~~~~~~~~~
  -This is a version of embedding lookup which will produce a smaller memory
  -footprint for small lookups. Instead of using dynamic lookup into the main
  -embedding dictionary, it uses a one hot operator and a multiply.
  +This is a version of embedding lookup that has been optimised for the IPU.
  +It allows the embedding lookup to be serialised into smaller lookups, which can
  +reduce the maximum memory at the cost of extra computation when the embedding
  +tensors are used by multiple operations.
  See :py:func:`tensorflow.python.ipu.embedding_ops.embedding_lookup`.
  