Add blog post for custom card sizing support

blog/2024-11-06-custom-card-sections-support.md

@@ -0,0 +1,25 @@
+---
+author: piitaya
+authorURL: https://github.com/piitaya
+authorImageURL: https://avatars.githubusercontent.com/u/5878303?v=4
+title: Sizing support for custom cards in sections view
+---
+
+With Home Assistant `2024.11`, "sections" view is now the default view when building a dashboard. One of the new feature of this view type is resizing cards.
+
+While the resizing feature is supported by default for every card, a new method can be implemented for custom cards to provide the best default size as well as minimum and maximum sizes to ensure the card looks good in all situations.
+
+The sections are using a 12 columns grid. In this example, the card will take 6 columns and 2 rows by default and the minimal size is 2 by 2.
+
+```js
+public getGridOptions() {
+  return {
+    rows: 2,
+    columns: 6,
+    min_rows: 2,
+    min_columns: 3,
+  };
+}
+```
+
+For more details, see the [custom card sizing](/docs/frontend/custom-ui/custom-card#sizing-in-sections-view) documentation.