[e] (0) Add a comment about cloneNode vs importNode in the example that clones a template, since some tutorials use importNode instead of cloneNode (they're identical in practice)
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=26837
Affected topics: DOM APIs, HTML

git-svn-id: https://svn.whatwg.org/webapps@8825 340c8d12-0b0e-0410-8428-c7bf67bfef74