[sophia] Improve compliance with wiki rules - should be OK for g5k-checks 0.3

data/grid5000/sites/sophia/clusters/azur/nodes/azur-62.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-63.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-64.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-7.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-8.json

data/grid5000/sites/sophia/clusters/azur/nodes/azur-9.json

...grid5000/sites/sophia/clusters/helios/nodes/helios-1.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-10.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-11.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-12.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-13.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-14.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-15.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-16.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-17.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-18.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-19.json

...grid5000/sites/sophia/clusters/helios/nodes/helios-2.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-20.json

...rid5000/sites/sophia/clusters/helios/nodes/helios-21.json