translate big_models.md and performance.md to chinese (#27334)

* translate performance.md

* tranlsate performance.md and big_models.md

* update translation

* update review

docs/source/zh/_toctree.yml

@@ -42,6 +42,12 @@
   - local: tflite
     title: 导出为 TFLite
   title: 开发者指南
+- sections:
+  - local: performance
+    title: 综述
+  - local: big_models
+    title: 实例化大模型
+  title: 性能和可扩展性
 - sections:
   - local: task_summary
     title: 🤗Transformers能做什么