Tangled now redirects tangled.sh to tangled.org and also redirects
/slices.network/slices to /@slices.network/slices. Some part of this
causes issues when cloning from the URL in the README.
$ git clone https://tangled.sh/slices.network/slices
Cloning into 'slices'...
remote: service unsupported: ''
fatal: unable to access 'https://tangled.sh/slices.network/slices/': The requested URL returned error: 403
Updating it to the URL in the tangled UI works as expected.
I also updated the only other usage of tangled.sh and
/slices.network/slices without the @ to avoid relying on the
redirect.