Docs parity for find with JupyterLab. (#6917)

* Docs parity with JupyterLab.

* Fix capitalization.

* Update docs/source/notebook.md

Co-authored-by: Jeremy Tuloup <jeremy.tuloup@gmail.com>

* Added macos shortcut info.

---------

Co-authored-by: Jeremy Tuloup <jeremy.tuloup@gmail.com>

docs/source/notebook.md

@@ -334,14 +334,17 @@ For the full list of available shortcuts, click {guilabel}`Help`,
 
 ## Searching
 
-Jupyter Notebook has an intelligent built-in search plugin for finding text within a
-notebook or other document, which uses the {kbd}`Ctrl-F` shortcut by default.
+Jupyter Notebook has an advanced built-in search plugin for finding text within a
+notebook or other document, which uses the {kbd}`Ctrl-F` ({kbd}`Cmd+F` for macOS) shortcut by default.
 
 Your browser's `find` function will give unexpected results because it doesn't have
-access to the full content of a document, but you can still use your browser find
-function from the browser menu if you want, or you can disable the intelligent search
+access to the full content of a document (by default), but you can still use your browser find
+function from the browser menu if you want, or you can disable the built-in search
 shortcut using the Advanced Settings Editor.
 
+Alternatively, you can disable windowed notebook rendering to expose the full
+document content to the browser at the expense of performance.
+
 ## Plotting
 
 One major feature of the Jupyter notebook is the ability to display plots that