Update collective ops docs

[HermitSun]

更新集合通信操作的中文文档，包括：

• paddle.distributed.all_gather
• paddle.distributed.all_reduce
• paddle.distributed.alltoall
• paddle.distributed.broadcast
• paddle.distributed.reduce
• paddle.distributed.recv
• paddle.distributed.irecv
• paddle.distributed.send
• paddle.distributed.isend
• paddle.distributed.scatter
• paddle.distributed.reduce_scatter
• paddle.distributed.new_group

增加集合通信操作的中文文档，包括：

• paddle.distributed.destroy_process_group
• paddle.distributed.alltoall_single
• paddle.distributed.stream.all_gather
• paddle.distributed.stream.all_reduce
• paddle.distributed.stream.alltoall
• paddle.distributed.stream.alltoall_single
• paddle.distributed.stream.broadcast
• paddle.distributed.stream.recv
• paddle.distributed.stream.reduce
• paddle.distributed.stream.reduce_scatter
• paddle.distributed.stream.send
• paddle.distributed.stream.scatter

实现PR包括：

• Completes basic dtypes for collective api in eager mode Paddle#45574
• Completes bfloat16 dtype for collective api in eager mode Paddle#45844
• Support both use_calc_stream and sync_op in all_reduce Paddle#45282
• Support both use_calc_stream and sync_op in send recv APIs Paddle#46023
• Support both use_calc_stream and sync_op in allgather API Paddle#46295
• Support both use_calc_stream and sync_op in collective communication API Paddle#46761
• Fix collective APIs cannot be recognized when building docs Paddle#46962
• [Cherry-pick] Collective communication APIs Paddle#46922

PADDLEPADDLE_PR=46922

[paddle-bot]

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[LiYuRio]

LGTM

[jzhang533]

LGTM