update documentation with info for simultaneous use of lab, notebook and nbclassic

Author: RRosio

docs/source/nbclassic.rst

@@ -60,19 +60,37 @@ NbClassic in the Jupyter Ecosystem
 Read more details about the changes currently taking place in the
 Jupyter Ecosystem in this `team-compass issue`_.
 
-You can install the nbclassic, notebook 7 and jupyterlab, all three of
+**NbClassic and Notebook 7**
+
+You can install NbClassic, Notebook 7 and JupyterLab, all three of
 which will be providing different user interfaces that will be available
-on the same server.
+on the same server. When Notebook 7 is available, the NbClassic UI, will
+be served at the ``/nbclassic/tree`` base URL rather than the 
+base URL ``/tree`` used otherwise. If you are using Notebook 7 along 
+with NbClassic, you wil also have JupyterLab installed as it is a 
+dependency of Notebook 7, and these front ends will be available 
+through the following base URLs: JupyterLab at ``/lab``, Notebook 7 at 
+``/tree``, and NbClassic at ``/nbclassic/tree``.
+
+**NbClassic and Notebook 6**
 
-As nbclassic provides the static assets for notebook 6.5.x, while
+As NbClassic provides the static assets for Notebook 6.5.x, while
 having both installed should cause no issues, the user interface provided
 by these two packages will be the same. These UIs would be available in
-different servers.
-
-When using nbclassic and notebook <= 6.4.x you can expect that these UIs
-will not be only presented at different servers but may also differ as
-potential changes to the nbclassic UI will not be reflected in Notebook
-versions <= 6.4.x.
+different servers. An NbClassic instance will be at a server with the 
+``/tree`` URL and opening a Notebook 6.5.x instance will open on a 
+different server with the ``/tree`` URL as well, presenting the same 
+static assets. When starting an instance of JupyterLab you will be able 
+to access the classic view of Notebook with NbClassic served on the same 
+server at the ``/tree`` URL. 
+
+When using NbClassic and Notebook <= 6.4.x you can expect that these UIs
+will not be only presented at different servers, meaning they will both 
+be available at their respective server under the ``/tree`` URL but they 
+may also differ as potential changes to the NbClassic UI will not be 
+reflected in Notebook versions <= 6.4.x. In this case as well, you would 
+be able to access the classic view of Notebook with NbClassic served on 
+the same server, at the ``/tree`` URL.
 
 .. _team-compass issue: https://github.com/jupyter/notebook-team-compass/issues/5#issuecomment-1085254000
 

docs/source/nbclassic_dev_faq.rst

@@ -25,8 +25,12 @@ Noteworthy Updates in NbClassic
 
 - Endpoints in NbClassic
     - NbClassic handlers have been updated to account for Notebook 7 being installed (`Handlers under nbclassic if notebook 7 is found`_). If so, the resources from nbclassic will be served under the ``/nbclassic/`` URL subpath, so as to not interfere  with those resources being served by Jupyter Notebook.
+    - Redirecting from ``/tree`` to ``/nbclassic/tree`` if both Notebook 7 and NbClassic are installed (`PR #166`_).
 
 .. _`Handlers under nbclassic if notebook 7 is found`: https://github.com/jupyter/nbclassic/pull/141
+.. _`PR #166`: https://github.com/jupyter/nbclassic/pull/166
+
+
 
 NbClassic Developer FAQ
 -----------------------