fix doc example and links
diff --git a/en/tutorial/upgrade-guide-v5.md b/en/tutorial/upgrade-guide-v5.md
index 796720a..ff73a6f 100644
--- a/en/tutorial/upgrade-guide-v5.md
+++ b/en/tutorial/upgrade-guide-v5.md
@@ -2,7 +2,7 @@
# ECharts 5 Upgrade Guide
-This guide is for those who want to upgrade from echarts 4.x (hereafter `v4`) to echarts 5.x (hereafter `v5`). You can find out what new features `v5` brings that are worth upgrading in [What's New in ECharts 5](xxx). In most cases, developers won't need to do anything extra for this upgrade, as echarts has always tried to keep the API as stable and backward-compatible as possible. However, `v5` still brings some breaking changes that require special attention. In addition, in some cases, `v5` provides a better API to replace the previous one, and these superseded APIs will no longer be recommended (though we have tried to be as compatible as possible with these changes). We'll try to explain these changes in detail in this document.
+This guide is for those who want to upgrade from echarts 4.x (hereafter `v4`) to echarts 5.x (hereafter `v5`). You can find out what new features `v5` brings that are worth upgrading in [New Features in ECharts 5](tutorial.html#ECharts%205%20Upgrade%20Guide). In most cases, developers won't need to do anything extra for this upgrade, as echarts has always tried to keep the API as stable and backward-compatible as possible. However, `v5` still brings some breaking changes that require special attention. In addition, in some cases, `v5` provides a better API to replace the previous one, and these superseded APIs will no longer be recommended (though we have tried to be as compatible as possible with these changes). We'll try to explain these changes in detail in this document.
Since we added the new [tree-shaking API](tutorial.html#%E5%9C%A8%E6%89%93%E5%8C%85%E7%8E%AF%E5%A2%83%E4%B8%AD%E4%BD%BF%E7%94%A8%20ECharts) in `v5.0.1`, this documentation is based on `v5.0.1` or higher.
diff --git a/en/tutorial/whats-new-in-echarts-v5.md b/en/tutorial/whats-new-in-echarts-v5.md
index fc57808..dffd8ff 100644
--- a/en/tutorial/whats-new-in-echarts-v5.md
+++ b/en/tutorial/whats-new-in-echarts-v5.md
@@ -1,6 +1,6 @@
{{target: whats-new-in-echarts-v5}}
-# New features in ECharts 5
+# New Features in ECharts 5
Data visualization has come a long way in the last few years. Developers no longer expect visualization products to be simple chart creation tools, but have more advanced needs in terms of interaction, performance, data processing, and more.
@@ -50,8 +50,6 @@
By default, Apache ECharts 5 will automatically hide overlapping labels. Labels that are outside the display area are automatically truncated or line wrapped. Dense pie chart labels now have a more aesthetically pleasing automatic layout.
-(Example)
-
These features can help avoid too dense text affecting readability. Also, no additional code needs to be written by the developer for this to take effect by default, greatly simplifying development costs for developers.
We also provide several configuration options to allow developers to actively control the layout strategy of tabs, such as tab dragging, displaying them as a whole at the edge of the canvas, connecting them with guide lines and graphic elements, and still linking to highlight to express the association.
@@ -66,13 +64,14 @@
Tooltip is one of the most commonly used visualization components to help users interactively understand the details of data. In Apache ECharts 5, we have optimized the style of the tooltip box to provide a visualization-compliant design for different chart families. And the rendering logic of rich text has been improved to ensure that the display is consistent with the HTML way, allowing users to choose different technical solutions to achieve the same effect in different scenarios.
-#### dashboard
+#### Gauge
-We have seen many cool dashboard charts created by community users, but the way they are configured is often complex and tricky. Therefore, we have upgraded the dashboard to support image or vector path drawing pointers, anchor configurations, progress bars, rounded corner effects, and more.
+We have seen many cool gauge charts created by community users, but the way they are configured is often complex and tricky. Therefore, we have upgraded the gauge to support image or vector path drawing pointers, anchor configurations, progress bars, rounded corner effects, and more.
These upgrades not only allow developers to achieve cool effects with simpler configuration items, but also bring richer customization capabilities.
-~[400x400](${galleryViewPath}line-race&edit=1&reset=1)
+~[600x600](${galleryViewPath}gauge-clock&edit=1&reset=1)
+
#### Scalloped rounded corners
diff --git a/zh/tutorial/upgrade-guide-v5.md b/zh/tutorial/upgrade-guide-v5.md
index dae5167..4347afb 100644
--- a/zh/tutorial/upgrade-guide-v5.md
+++ b/zh/tutorial/upgrade-guide-v5.md
@@ -3,7 +3,7 @@
# ECharts 5 升级指南
-本指南面向那些希望将 echarts 4.x（以下简称 `v4`）升级到 echarts 5.x（以下简称 `v5`）的用户。大家可以在 [ECharts 5 新特性](xxx) 中了解这次`v5`带来了哪些值得升级的新特性。在绝大多数情况下，开发者用不着为这个升级做什么额外的事，因为 echarts 一直尽可能地保持 API 的稳定和向后兼容。但是，`v5` 仍然带来了一些非兼容改动，需要特别关注。此外，在一些情况下，`v5` 提供了更好的 API 用来取代之前的 API，这些被取代的 API 将不再被推荐使用（当然，我们尽量兼容了这些改动）。我们会在这篇文档里尽量详尽得解释这些改动。
+本指南面向那些希望将 echarts 4.x（以下简称 `v4`）升级到 echarts 5.x（以下简称 `v5`）的用户。大家可以在 [ECharts 5 新特性](tutorial.html#ECharts%205%20新特性) 中了解这次`v5`带来了哪些值得升级的新特性。在绝大多数情况下，开发者用不着为这个升级做什么额外的事，因为 echarts 一直尽可能地保持 API 的稳定和向后兼容。但是，`v5` 仍然带来了一些非兼容改动，需要特别关注。此外，在一些情况下，`v5` 提供了更好的 API 用来取代之前的 API，这些被取代的 API 将不再被推荐使用（当然，我们尽量兼容了这些改动）。我们会在这篇文档里尽量详尽得解释这些改动。
因为我们在 `v5.0.1` 增加了新的[按需引入接口](tutorial.html#%E5%9C%A8%E6%89%93%E5%8C%85%E7%8E%AF%E5%A2%83%E4%B8%AD%E4%BD%BF%E7%94%A8%20ECharts)，所以本文档基于 `v5.0.1` 或者更高的版本。
diff --git a/zh/tutorial/whats-new-in-echarts-v5.md b/zh/tutorial/whats-new-in-echarts-v5.md
index 5e2de55..1a0621b 100644
--- a/zh/tutorial/whats-new-in-echarts-v5.md
+++ b/zh/tutorial/whats-new-in-echarts-v5.md
@@ -50,8 +50,6 @@
Apache ECharts 5 在默认情况下，将自动隐藏重叠的标签。对于超出显示区域的标签，将会自动截断或者换行。密集的饼图标签，现在有了更美观的自动排布。
-（例子）
-
这些功能可以帮助避免文字过于密集影响可读性。并且，无需开发者编写额外的代码就能默认生效，大大简化了开发者的开发成本。
我们也提供了多个配置项来让开发者主动控制标签的布局策略，例如标签拖动、整体显示在画布边缘，用引导线和图形元素连接，并且仍可联动高亮表达关联关系。
@@ -72,7 +70,7 @@
这些升级，不仅可以让开发者用更简单的配置项实现酷炫的效果，而且带来了更丰富的定制能力。
-~[400x400](${galleryViewPath}line-race&edit=1&reset=1)
+~[600x600](${galleryViewPath}gauge-clock&edit=1&reset=1)
#### 扇形圆角
