Link to Cytoscape desktop on top of docs; closes #542
Link to Cytoscape desktop on top of docs; closes #542

KonstantinShemyak/cytoscape.js,soomin-maeng/cytoscape.js,rlugojr/cytoscape.js,KonstantinShemyak/cytoscape.js,soomin-maeng/cytoscape.js,rlugojr/cytoscape.js