docs: describe selectAll

docs/src/docPages/api/commands/select-all.md

@@ -1,3 +1,8 @@
 # selectAll
+Selects the whole document at once.
 
-<ContentMissing />
+## Usage
+```js
+// Select the whole document
+editor.commands.selectAll()
+```

docs/src/docPages/api/commands/set-text-selection.md

@@ -1,7 +1,7 @@
 # setTextSelection
 If you think of selection in the context of an editor, you’ll probably think of a text selection. With `setTextSelection` you can control that text selection and set it to a specified range or position.
 
-See also: [focus](/api/commands/focus), [setNodeSelection](/api/commands/set-node-selection), [deleteSelection](/api/commands/delete-selection)
+See also: [focus](/api/commands/focus), [setNodeSelection](/api/commands/set-node-selection), [deleteSelection](/api/commands/delete-selection), [selectAll](/api/commands/select-all)
 
 ## Parameters
 `position: number | Range`

docs/src/links.yaml

@@ -192,7 +192,7 @@
           type: draft
         - title: selectAll
           link: /api/commands/select-all
-          type: draft
+          type: new
         - title: selectNodeBackward
           link: /api/commands/select-node-backward
           type: draft