Requirement in README and install instructions contradictory.

[Northo]

After #1271, there seem to be a contradiction in the README. The top parts says "JupyterLab >= 4.0" in requirements, while the installation instructions are pip install --upgrade "jupyterlab<4" jupyterlab-git.
From my experiments, it seems like 4.0 does not work.

It seems like the Requirements section of README does not agree with the installation guide anymore. While the installation guide asks for "jupyterlab<4", the Requirements say "JupyterLab >= 4.0". This sounds contradictory to me.

Originally posted by @markusReinert in #1271 (comment)

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[krassowski]

The jupyterlab-git v0.50.0rc0 supporting JupyterLab 4.0 is in release candidate phase, and as such you will need to add --pre to the pip install command, for example:

pip install --pre "jupyterlab-git==0.50.0rc0"

(see #1245 (comment)).

As soon as the final version is released (hopefully very soon) the plain pip install will just work.

[Northo]

Great!

However, I still believe the docs should be updated. As it seems 0.50 will be released quite soon, maybe it is sufficient to simply remove the <4 constraint from the installation instructions in the README?

[fcollonval]

Fixed by #1305