Fix formatting in DiscreteTimeCIFNLLLoss documentation for clarity

losses.py

@@ -139,7 +139,7 @@ class DiscreteTimeCIFNLLLoss(nn.Module):
     channels, where the complement channel (index K) represents survival across bins.
 
         Per-sample likelihood for observed cause k at time bin j:
-      p = \prod_{u=1}^{j-1} p(comp at u) * p(k at j)
+            p = \\prod_{u=1}^{j-1} p(comp at u) * p(k at j)
 
     Args:
         bin_edges: Increasing sequence of floats of length (n_bins + 1) with bin_edges[0] == 0.