Docs: fix table markdown demo (#14253)

examples/docs/en-US/table.md

@@ -1542,7 +1542,7 @@ Customize table header so it can be even more customized.
 ```html
 <template>
   <el-table
-    :data="tableData7.filter(data => !search || data.name.toLowerCase().includes(search.toLowerCase()))"
+    :data="tableData.filter(data => !search || data.name.toLowerCase().includes(search.toLowerCase()))"
     style="width: 100%">
     <el-table-column
       label="Date"

examples/docs/es/table.md

@@ -1540,7 +1540,7 @@ Se puede personalizar el encabezado de la tabla para que se pueda adaptar aún m
 ```html
 <template>
   <el-table
-    :data="tableData7.filter(data => !search || data.name.toLowerCase().includes(search.toLowerCase()))"
+    :data="tableData.filter(data => !search || data.name.toLowerCase().includes(search.toLowerCase()))"
     style="width: 100%">
     <el-table-column
       label="Date"

examples/docs/zh-CN/table.md

@@ -1690,7 +1690,7 @@
 ```html
 <template>
   <el-table
-    :data="tableData7.filter(data => !search || data.name.toLowerCase().includes(search.toLowerCase()))"
+    :data="tableData.filter(data => !search || data.name.toLowerCase().includes(search.toLowerCase()))"
     style="width: 100%">
     <el-table-column
       label="Date"