remove Example: in code docstrings

Author: Baizhou Zhang

colossalai/booster/plugin/gemini_plugin.py

@@ -229,8 +229,6 @@ class GeminiPlugin(DPPluginBase):
     """
     Plugin for Gemini.
 
-    Example:
-
     ```python
     from colossalai.booster import Booster
     from colossalai.booster.plugin import GeminiPlugin

colossalai/booster/plugin/hybrid_parallel_plugin.py

@@ -266,8 +266,6 @@ class HybridParallelPlugin(PipelinePluginBase):
     Tensor parallel, pipeline parallel and data parallel(DDP/ZeRO) can be picked and combined in this plugin.
     The size of tp and pp should be passed in by user, then the size of dp is automatically calculated from dp_size = world_size / (tp_size * pp_size).
 
-    Example:
-
     ```python
     from colossalai.booster import Booster
     from colossalai.booster.plugin import HybridParallelPlugin

colossalai/booster/plugin/low_level_zero_plugin.py

@@ -213,8 +213,6 @@ class LowLevelZeroPlugin(DPPluginBase):
     """
     Plugin for low level zero.
 
-    Example:
-
     ```python
     from colossalai.booster import Booster
     from colossalai.booster.plugin import LowLevelZeroPlugin

colossalai/booster/plugin/torch_ddp_plugin.py

@@ -130,8 +130,6 @@ class TorchDDPPlugin(DPPluginBase):
     """
     Plugin for PyTorch DDP.
 
-    Example:
-
     ```python
     from colossalai.booster import Booster
     from colossalai.booster.plugin import TorchDDPPlugin

colossalai/booster/plugin/torch_fsdp_plugin.py

@@ -143,8 +143,6 @@ class TorchFSDPPlugin(DPPluginBase):
     """
     Plugin for PyTorch FSDP.
 
-    Example:
-
     ```python
     from colossalai.booster import Booster
     from colossalai.booster.plugin import TorchFSDPPlugin

colossalai/cluster/dist_coordinator.py

@@ -20,7 +20,6 @@ class in the whole program.
         - master: the process with rank 0
         - node master: the process with local rank 0 on the current node
 
-    Example:
 
     ```python
     from colossalai.cluster.dist_coordinator import DistCoordinator
@@ -134,7 +133,6 @@ def priority_execution(self, executor_rank: int = 0, process_group: ProcessGroup
         other processes in the same process group. This is often useful when downloading is required
         as we only want to download in one process to prevent file corruption.
 
-        Example:
 
         ```python
         from colossalai.cluster import DistCoordinator
@@ -180,8 +178,6 @@ def on_master_only(self, process_group: ProcessGroup = None):
         """
         A function wrapper that only executes the wrapped function on the master process (rank 0).
 
-        Example:
-
         ```python
         from colossalai.cluster import DistCoordinator
         dist_coordinator = DistCoordinator()