docs: fix wrong api call

Author: YousefED

docs/pages/docs/editor-api/manipulating-blocks.mdx

@@ -119,7 +119,7 @@ insertBlocks(
 ): void;
 
 // Usage
-editor.insertBlocks([{type: "paragraph", text: "Hello World"}], referenceBlock, placement)
+editor.insertBlocks([{type: "paragraph", content: "Hello World"}], referenceBlock, placement)
 ```
 
 `blocksToInsert:` An array of [partial blocks](/docs/editor-api/manipulating-blocks#partial-blocks) that should be inserted.