message: Add missing closing backtick
diff: @@ -477,7 +477,7 @@ class LossScaleOptimizer(_DelegatingTrackableMixin, optimizer_v2.OptimizerV2):
  skipped is `1 / dynamic_growth_steps`).
  `LossScaleOptimizer` delegates all public `Optimizer` methods to the inner
  - optimizer. Additionally, in methods `minimize` and `get_gradients, it scales
  + optimizer. Additionally, in methods `minimize` and `get_gradients`, it scales
  the loss and unscales the gradients. In methods `minimize` and
  `apply_gradients`, it additionally updates the loss scale and skips applying
  gradients if any gradient has a nonfinite value.
  