Update installation.rst

Update installation method.

doc/source/installation.rst

@@ -4,19 +4,24 @@ Installation
 
 .. _quickstart:
 
-Qutip-Jax needs the development version of Qutip and installation is only possible from source.
+Qutip-Jax can be installed with pip:
 
 .. code-block:: bash
 
-    pip install qutip --pre
-    pip install git+https://github.com/qutip/qutip-jax.git
+    pip install qutip>=5.0.0 qutip-jax
+
+However qutip-jax is currently being developed and a lot of feature are only available when installed from source:
 
+.. code-block:: bash
+
+    pip install git+https://github.com/qutip/qutip.git
+    pip install git+https://github.com/qutip/qutip-jax.git
 
 .. _prerequisites:
 
 Prerequisites
 =============
-This package use the development version of QuTiP, Jax, equinox and diffrax.
+This package uses QuTiP, Jax, equinox and diffrax.
 
 We use ``pytest`` for testing.