[CI] fix some spelling errors (#3707)

* fix spelling error with examples/comminity/

* fix spelling error with tests/

* fix some spelling error with tests/ colossalai/ etc.

colossalai/communication/p2p.py

@@ -217,7 +217,7 @@ def recv_backward(output_grad_shape,
         next_rank (int, optional): The rank of the source of the tensor.
 
     Returns:
-        Union[:class:`torch.Tensor`, List[:class:`torch.Tensor`]]: The input gradient tensor or gradident tensor list.
+        Union[:class:`torch.Tensor`, List[:class:`torch.Tensor`]]: The input gradient tensor or gradient tensor list.
     """
     if gpc.is_pipeline_last_stage():
         output_tensor_grad = None

colossalai/communication/p2p_v2.py

@@ -19,7 +19,7 @@ _unpickler = pickle.Unpickler
 
 
 def init_process_group():
-    """intialise process group by dist.new_group in the adjacent stages
+    """initialise process group by dist.new_group in the adjacent stages
 
     Args:
         None

colossalai/context/process_group_initializer/initializer_sequence.py

@@ -91,11 +91,11 @@ class Initializer_Sequence(ProcessGroupInitializer):
 
         parallel_setting = []
 
-        local_rank, group_world_size, process_group, cpu_grop, ranks_in_group, mode = \
+        local_rank, group_world_size, process_group, cpu_group, ranks_in_group, mode = \
             self._sequence_initializer.init_dist_group()
         # change mode to sequence
         mode = ParallelMode.SEQUENCE
 
-        parallel_setting.append((local_rank, group_world_size, process_group, cpu_grop, ranks_in_group, mode))
+        parallel_setting.append((local_rank, group_world_size, process_group, cpu_group, ranks_in_group, mode))
         parallel_setting.append(self._sequence_dp_initializer.init_dist_group())
         return parallel_setting