Remove commands (#3351)

* remove commands in favor of editor-level functions

* update examples

* fix lint

docs/concepts/06-editor.md

@@ -103,13 +103,13 @@ Another special group of helper functions exposed on the `Editor` interface are
 
 ```js
 // Insert an element node at a specific path.
-Editor.insertNodes(editor, [element], { at: path })
+Transforms.insertNodes(editor, [element], { at: path })
 
 // Split the nodes in half at a specific point.
-Editor.splitNodes(editor, { at: point })
+Transforms.splitNodes(editor, { at: point })
 
 // Add a quote format to all the block nodes in the selection.
-Editor.setNodes(editor, { type: 'quote' })
+Transforms.setNodes(editor, { type: 'quote' })
 ```
 
 The editor-specific helpers are the ones you'll use most often when working with Slate editors, so it pays to become very familiar with them.

docs/concepts/07-plugins.md

@@ -14,7 +14,7 @@ const withImages = editor => {
     if (command.type === 'insert_image') {
       const { url } = command
       const element = { type: 'image', url, children: [{ text: '' }] }
-      Editor.insertNodes(editor, element)
+      Transforms.insertNodes(editor, element)
     } else {
       exec(command)
     }

docs/concepts/10-normalizing.md

@@ -41,7 +41,7 @@ const withParagraphs = editor => {
     if (Element.isElement(node) && node.type === 'paragraph') {
       for (const [child, childPath] of Node.children(editor, path)) {
         if (Element.isElement(child) && !editor.isInline(child)) {
-          Editor.unwrapNodes(editor, { at: childPath })
+          Transforms.unwrapNodes(editor, { at: childPath })
           return
         }
       }
@@ -67,7 +67,7 @@ If you check the example above again, you'll notice the `return` statement:
 
 ```js
 if (Element.isElement(child) && !editor.isInline(child)) {
-  Editor.unwrapNodes(editor, { at: childPath })
+  Transforms.unwrapNodes(editor, { at: childPath })
   return
 }
 ```
@@ -135,7 +135,7 @@ const withLinks = editor => {
       node.type === 'link' &&
       typeof node.url !== 'string'
     ) {
-      Editor.setNodes(editor, { url: null }, { at: path })
+      Transforms.setNodes(editor, { url: null }, { at: path })
       return
     }