Distinguish better between app and docs in browser tabs

[JohnVeness]

When using ERPnext and reading the documentation at the same time, you can end up with two browser tabs which look identical. E.g. in the following, one tab is viewing the app, the other is viewing https://docs.erpnext.com/docs/user/manual/en/customize-erpnext/customize-form but it is impossible to tell which is which:

Can something be done to better distinguish these, e.g. changing the favicon, and/or adding " - ERPnext docs" to the end of page titles in the docs, or similar?