Not on --depth 1 for CI

Author: birkskyum

CUSTOM_BUNDLE.md

@@ -3,9 +3,11 @@ You can simply make custom bundles yourself, if none of the [distributed package
 
 Clone plotly.js, where the <version> is one of [these](https://github.com/plotly/plotly.js/tags):
 ```sh
-git clone --depth 1 --branch <version> https://github.com/plotly/plotly.js.git
+git clone --branch <version> https://github.com/plotly/plotly.js.git
 ```
 
+Note: For CI, it's faster to do `git clone --depth 1` flag to only get one commit.
+
 Move to plotly.js folder then install plotly.js dependencies:
 ```sh
 cd plotly.js