[unity] Minor: updated upgrade guide documentation (typos fixed) provided by wiige on the forum.

Author: HaraldCsaszar

spine-unity/Assets/Spine/Documentation/4.3-split-component-upgrade-guide-zh.md

@@ -86,7 +86,7 @@
 
 ### 阶段 1: 升级至 4.3-beta 非模块化组件版本
 
-First upgrade to a 4.3-beta version before the component split changes:
+第一步是升级至 4.3-beta 非模块化组件版本:
 
 * **Commit Hash**: `a07b1de`
 * **使用 Git URL 添加包**: `https://github.com/EsotericSoftware/spine-runtimes.git?path=spine-csharp/src#a07b1de`

spine-unity/Assets/Spine/Documentation/4.3-split-component-upgrade-guide.md

@@ -2,7 +2,8 @@
 ## Component Architecture Restructuring
 
 > **Note:** You can find Chinese and Japanese translations of this upgrade guide right next to this file.
-> * [中文版 4.3 分体组件升级指南 - Chinese 4.3 Split Component Upgrade Guide](https://github.com/EsotericSoftware/spine-runtimes/tree/4.3-beta/spine-unity/Assets/Spine/Documentation/4.3-split-component-upgrade-guide-zh.md)
+>
+> * [中文版 4.3 模块化组件升级指南 - Chinese 4.3 Split Component Upgrade Guide](https://github.com/EsotericSoftware/spine-runtimes/tree/4.3-beta/spine-unity/Assets/Spine/Documentation/4.3-split-component-upgrade-guide-zh.md)
 > * [日本語版 4.3 分割コンポーネントアップグレードガイド - Japanese 4.3 Split Component Upgrade Guide](https://github.com/EsotericSoftware/spine-runtimes/tree/4.3-beta/spine-unity/Assets/Spine/Documentation/4.3-split-component-upgrade-guide-ja.md)
 
 ---
@@ -36,7 +37,7 @@ All component settings and fields will be automatically transferred - nothing wi
 
 **However:** Due to these type changes, existing references in your custom scripts may be lost because the component types no longer match (e.g., `SkeletonAnimation` is no longer a subclass of `SkeletonRenderer`).
 
-### Required Upgrade Steps (In Order):
+### Required Upgrade Steps (In Order)
 
 1. **🔒 BACKUP YOUR PROJECT**
    Create a complete backup before upgrading. These changes will modify your scenes and prefabs.
@@ -71,7 +72,7 @@ All component settings and fields will be automatically transferred - nothing wi
      - Under "Upgrade Scenes & Prefabs"
      - Click `Upgrade All` button
 
-### What Will Break If You Don't Prepare:
+### What Will Break If You Don't Prepare
 - Component references in scenes or prefabs may be lost (set to null) once you save your scenes or prefabs
 - Building before upgrading all scenes/prefabs may result in missing components in the build
 
@@ -108,15 +109,15 @@ This two-step approach helps isolate issues - if something breaks, you'll know w
 
 The spine-unity 4.3 runtime introduces a major architectural change: **separation of animation from rendering by using two separate components instead of component inheritance**. This enables flexible combinations like using `SkeletonMecanim` for animation with `SkeletonGraphic` for rendering, which was previously not possible.
 
-### Key Changes:
+### Key Changes
 - **Component Split**: The previously monolithic components have been split into separate rendering and animation components.
 - **Separate Components**: `SkeletonAnimation` and `SkeletonMecanim` no longer inherit from `SkeletonRenderer`. They now work alongside a separate renderer component (a subclass of `ISkeletonRenderer`), such as `SkeletonRenderer` and `SkeletonGraphic`.
 - **Interface Updates**: New `ISkeletonRenderer` and `ISkeletonAnimation` interfaces with updated property names.
 - **Settings Grouping**: Mesh generation settings are now grouped under `MeshSettings` property.
 - **Automatic Migration**: The Unity Editor will automatically upgrade your components to the new split components and transfer deprecated fields when `AUTO_UPGRADE_TO_43_COMPONENTS` is defined (*the default*).
 - **Upgrade all Scenes and Prefabs**: To upgrade all scenes and prefabs at once, go to `Edit - Preferences - Spine` and under `Automatic Component Upgrade` hit `Upgrade Scenes & Prefabs` - `Upgrade All`.
 
-### Component Relationships:
+### Component Relationships
 
 | **Old Architecture** | **New Architecture** |
 |---------------------|---------------------|