Fix options hash so that all layout examples are consistent
Fix options hash so that all layout examples are consistent

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