Update multitask_gaussian_likelihood.py

Author: saitcakmak

gpytorch/likelihoods/multitask_gaussian_likelihood.py

@@ -293,7 +293,7 @@ def _eval_covar_matrix(self) -> Tensor:
     def marginal(
         self, function_dist: MultitaskMultivariateNormal, *args: Any, **kwargs: Any
     ) -> MultitaskMultivariateNormal:
-        """
+        r"""
         :return: Analytic marginal :math:`p(\mathbf y)`.
         """
         return super().marginal(function_dist, *args, **kwargs)