New translations ql-schema.mdx (Chinese Simplified)

Author: benface

website/src/pages/zh/subgraphs/developing/creating/ql-schema.mdx

@@ -20,7 +20,7 @@ Before defining entities, it is important to take a step back and think about ho
   - Mutability comes at a price, so for entity types that will never be modified, such as those containing data extracted verbatim from the chain, it is recommended to mark them as immutable with `@entity(immutable: true)`.
   - If changes happen in the same block in which the entity was created, then mappings can make changes to immutable entities. Immutable entities are much faster to write and to query so they should be used whenever possible.
 
-#### 好代码的例子
+#### 好示例
 
 The following `Gravatar` entity is structured around a Gravatar object and is a good example of how an entity could be defined.