AdoptAWidget: Table (#69488) (#69588)

* Added Dartpad sample for Table widget

* Changed template to stateless_widget_scaffold

* Removed trailing character

packages/flutter/lib/src/widgets/table.dart

@@ -81,6 +81,70 @@ class _TableElementRow {
 ///
 /// {@youtube 560 315 https://www.youtube.com/watch?v=_lbE0wsVZSw}
 ///
+/// {@tool dartpad --template=stateless_widget_scaffold}
+///
+/// This sample shows a `Table` with borders, multiple types of column widths and different vertical cell alignments.
+///
+/// ```dart
+/// Widget build(BuildContext context) {
+///   return Table(
+///     border: TableBorder.all(),
+///     columnWidths: {
+///       0: IntrinsicColumnWidth(),
+///       1: FlexColumnWidth(),
+///       2: FixedColumnWidth(64),
+///     },
+///     defaultVerticalAlignment: TableCellVerticalAlignment.middle,
+///     children: [
+///       TableRow(
+///         children: [
+///           Container(
+///             height: 32,
+///             color: Colors.green,
+///           ),
+///           TableCell(
+///             verticalAlignment: TableCellVerticalAlignment.top,
+///             child: Container(
+///               height: 32,
+///               width: 32,
+///               color: Colors.red,
+///             ),
+///           ),
+///           Container(
+///             height: 64,
+///             color: Colors.blue,
+///           ),
+///         ],
+///       ),
+///       TableRow(
+///         decoration: BoxDecoration(
+///           color: Colors.grey,
+///         ),
+///         children: [
+///           Container(
+///             height: 64,
+///             width: 128,
+///             color: Colors.purple,
+///           ),
+///           Container(
+///             height: 32,
+///             color: Colors.yellow,
+///           ),
+///           Center(
+///             child: Container(
+///               height: 32,
+///               width: 32,
+///               color: Colors.orange,
+///             ),
+///           ),
+///         ],
+///       ),
+///     ],
+///   );
+/// }
+/// ```
+/// {@end-tool}
+///
 /// If you only have one row, the [Row] widget is more appropriate. If you only
 /// have one column, the [SliverList] or [Column] widgets will be more
 /// appropriate.