add ema document file(test=document_fix) (#853)

HydrogenSulfate · web-flow · commit 8d7dadd81aa7 · 2024-04-17T11:12:25.000+08:00
diff --git a/docs/zh/api/utils/ema.md b/docs/zh/api/utils/ema.md
@@ -0,0 +1,11 @@
+# Utils.ema(模型平均) 模块
+
+::: ppsci.utils.ema
+    handler: python
+    options:
+      members:
+        - AveragedModel
+        - ExponentialMovingAverage
+        - StochasticWeightAverage
+      show_root_heading: True
+      heading_level: 3
