Fixed docs linkcheck

ignite/distributed/utils.py

@@ -304,7 +304,7 @@ def train_fn(local_rank, a, b, c, d=12):
             idist.spawn("xla-tpu", train_fn, args=(a, b, c), kwargs_dict={"d": 23}, nproc_per_node=8)
 
     .. _dist.init_process_group: https://pytorch.org/docs/stable/distributed.html#torch.distributed.init_process_group
-    .. _mp.start_processes: https://pytorch.org/docs/stable/multiprocessing.html#torch.multiprocessing.spawn
+    .. _mp.start_processes: https://pytorch.org/docs/stable/multiprocessing.html#torch.multiprocessing.spawn.spawn
     .. _xmp.spawn: https://pytorch.org/xla/release/1.6/index.html#torch_xla.distributed.xla_multiprocessing.spawn
     .. _hvd_run: https://horovod.readthedocs.io/en/latest/api.html#module-horovod.run