Fix typo in optimize_homotopy

Summary: see title

Reviewed By: saitcakmak

Differential Revision: D63236195

botorch/optim/optimize_homotopy.py

@@ -78,7 +78,7 @@ def optimize_acqf_homotopy(
  final_options: Options for candidate generation in the last homotopy step.
  batch_initial_conditions: A tensor to specify the initial conditions. Set
  this if you do not want to use default initialization strategy.
- post_processing_func: Post processing function (such as roundingor clamping)
+ post_processing_func: Post processing function (such as rounding or clamping)
  that is applied before choosing the final candidate.
  """
  candidate_list, acq_value_list = [], []