I am working on an application using VF and Lightning Design System, which is great btw, but I am having trouble finding best practices around leveraging wireframe stencils while waiting for page loads.  I am able to do this using react.js and jquery however I can't find any real best practices for it.  I find it strange that Salesforce discusses using stencils but there is no documentation to look at while implementing.  Does anyone have any examples or best practices around this topic?

I am new to salesforce and i face a problem.
My problem is I want to redirect to the same visualforce page when New and Edit button is clicked from another Vf page.
Is it possible to change the Page Heading as "Add Request" when clicking Add and "Edit Request" when clicking Edit button? Please help