add doc for apache/echarts#21117

en/option/partial/mark-area.md

@@ -169,6 +169,12 @@ Specify the right-bottom point.
     index = 1
 ) }}
 
+{{ use: partial-z(
+    prefix = "#" + ${prefix},
+    defaultZ = "1",
+    version = "6.0.0"
+) }}
+
 {{ use: partial-animation(
     prefix = "#" + ${prefix},
     defaultAnimation = 'false'

en/option/partial/mark-line.md

@@ -192,6 +192,12 @@ Data of the ending point.
     index = 1
 ) }}
 
+{{ use: partial-z(
+    prefix = "#" + ${prefix},
+    defaultZ = "5",
+    version = "6.0.0"
+) }}
+
 {{ use: partial-animation(
     prefix = "#" + ${prefix}
 ) }}

en/option/partial/mark-point.md

@@ -220,6 +220,12 @@ Mark point style.
     prefix = "####" + ${prefix}
 ) }}
 
+{{ use: partial-z(
+    prefix = "#" + ${prefix},
+    defaultZ = "5",
+    version = "6.0.0"
+) }}
+
 {{ use: partial-animation(
     prefix = "#" + ${prefix}
 ) }}

en/option/partial/z.md

@@ -0,0 +1,13 @@
+
+{{ target: partial-z }}
+
+#${prefix|default("#")} z(number) = ${defaultZ|default(5)}
+
+{{ use: partial-version(
+    version = ${version}
+) }}
+
+Components with smaller `z` values may be overwritten by those with larger `z` values.
+
+`z` has a lower priority to `zlevel`, and will not create new Canvas.
+

zh/option/partial/mark-area.md

@@ -169,6 +169,12 @@ data: [
     index = 1
 ) }}
 
+{{ use: partial-z(
+    prefix = "#" + ${prefix},
+    defaultZ = "1",
+    version = "6.0.0"
+) }}
+
 {{ use: partial-animation(
     prefix = "#" + ${prefix},
     defaultAnimation = 'false'

zh/option/partial/mark-line.md

@@ -191,6 +191,12 @@ data: [
     index = 1
 ) }}
 
+{{ use: partial-z(
+    prefix = "#" + ${prefix},
+    defaultZ = "5",
+    version = "6.0.0"
+) }}
+
 {{ use: partial-animation(
     prefix = "#" + ${prefix}
 ) }}

zh/option/partial/mark-point.md

@@ -220,6 +220,12 @@ data: [{{ if: ${hasType} }}
     prefix = "####" + ${prefix}
 ) }}
 
+{{ use: partial-z(
+    prefix = "#" + ${prefix},
+    defaultZ = "5",
+    version = "6.0.0"
+) }}
+
 {{ use: partial-animation(
     prefix = "#" + ${prefix}
 ) }}

zh/option/partial/z.md

@@ -0,0 +1,12 @@
+{{ target: partial-z }}
+
+#${prefix|default("#")} z(number) = ${defaultZ|default(5)}
+
+{{ use: partial-version(
+    version = ${version}
+) }}
+
+`z`值小的图形会被`z`值大的图形覆盖。
+
+`z`相比`zlevel`优先级更低，而且不会创建新的 Canvas。
+