fix: added missing symbols and fix some wrong in tutorial and option
diff --git a/en/option/component/visual-map.md b/en/option/component/visual-map.md
index 9d115bb..d504203 100644
--- a/en/option/component/visual-map.md
+++ b/en/option/component/visual-map.md
@@ -186,11 +186,11 @@
About the possible value range of visual value:
-+ `opacity`、`colorAlpha`、`colorLightness`、`colorSaturation`，`visual value`
++ `opacity`、`colorAlpha`、`colorLightness`、`colorSaturation`、`visual value`
possible value range is `[0, 1]`.
-+ `colorHue`
++ `colorHue`：
possible value range is `[0, 360]`.
diff --git a/en/tutorial/dataset.md b/en/tutorial/dataset.md
index a8b65ba..c9b2d7c 100644
--- a/en/tutorial/dataset.md
+++ b/en/tutorial/dataset.md
@@ -8,12 +8,12 @@
Before ECharts 4, data was only able to declared in each series, for example:
```js
-option: {
+option = {
xAxis: {
type: 'category',
data: ['Matcha Latte', 'Milk Tea', 'Cheese Cocoa', 'Walnut Brownie']
},
- yAxis: {}
+ yAxis: {},
series: [
{
type: 'bar',
diff --git a/en/tutorial/styling.md b/en/tutorial/styling.md
index 7d9f9c0..6932f91 100644
--- a/en/tutorial/styling.md
+++ b/en/tutorial/styling.md
@@ -7,7 +7,7 @@
## Drawing Nightingale Rose Chart
-[Getting started tutorial](~Get%20Started%20with%20ECharts%20in%205%20minutes) introduced how to make a simple bar chart. This time, we are going to make a pie chart. Pie charts use arc length of fans to represent ratio of a certain series in total share. It's data format is simpler than bar chart, because it only contains one dimension without category. Besides, since it's not in rectangular system, it doesn't need `xAxis`，`yAxis` either.
+[Getting started tutorial](~Get%20Started%20with%20ECharts%20in%205%20minutes) introduced how to make a simple bar chart. This time, we are going to make a pie chart. Pie charts use arc length of fans to represent ratio of a certain series in total share. It's data format is simpler than bar chart, because it only contains one dimension without category. Besides, since it's not in rectangular system, it doesn't need `xAxis`、`yAxis` either.
```js
myChart.setOption({
diff --git a/en/tutorial/visual-map.md b/en/tutorial/visual-map.md
index c6bb34e..5a75308 100644
--- a/en/tutorial/visual-map.md
+++ b/en/tutorial/visual-map.md
@@ -93,10 +93,7 @@
<br>
-Piecewise visual map component has three types:
-
-
-分段型视觉映射组件（visualMapPiecewise），有三种模式：
+Piecewise visual map component（visualMapPiecewise）has three types:
+ Equal division of continuous data: divide equally based on [visualMap-piecewise.splitNumber](option.html#visualMap-piecewise.splitNumber);
+ User-defined division of continuous data: divide with range in [visualMap-piecewise.pieces](option.html#visualMap-piecewise.pieces);
diff --git a/zh/option/component/visual-map.md b/zh/option/component/visual-map.md
index 5fddea5..b6b4f56 100644
--- a/zh/option/component/visual-map.md
+++ b/zh/option/component/visual-map.md
@@ -176,11 +176,11 @@
visual value 的取值范围：
-+ `透明度（opacity）`、`颜色透明度（colorAlpha）`、`颜色明暗度（colorLightness）`、`颜色饱和度（colorSaturation）`，`visual value`
++ `透明度（opacity）`、`颜色透明度（colorAlpha）`、`颜色明暗度（colorLightness）`、`颜色饱和度（colorSaturation）`、`visual value`
取值范围是 `[0, 1]`。
-+ `色调（colorHue）`
++ `色调（colorHue）`：
取值范围是 `[0, 360]`。
diff --git a/zh/tutorial/dataset.md b/zh/tutorial/dataset.md
index 0315603..0ee4d60 100644
--- a/zh/tutorial/dataset.md
+++ b/zh/tutorial/dataset.md
@@ -8,12 +8,12 @@
ECharts 4 以前，数据只能声明在各个“系列（series）”中，例如：
```js
-option: {
+option = {
xAxis: {
type: 'category',
data: ['Matcha Latte', 'Milk Tea', 'Cheese Cocoa', 'Walnut Brownie']
},
- yAxis: {}
+ yAxis: {},
series: [
{
type: 'bar',
