Bad path in spikeinterface.readthedocs.io

[nrsc]

Just a heads up that there is a bad path in your README / readthedocs.io page for this repo. The link embedded under spikeinterface-gui in the bullet "offer a powerful Qt-based viewer in separate package spikeinterface-gui" is bad. There is an extra https// in the path.

[h-mayorquin]

Thanks for this. Sorry for the long while, this has escaped us:

#1555