Changes

local ret = {}

local ret = {}

for _, anchor in ipairs(anchors) do

for _, anchor in ipairs(anchors) do

ret[#ret + 1] = '<span id="' .. anchor .. '"></span>'

ret[#ret + 1] = '<span class="anchor" id="' .. anchor .. '"></span>'

end

end

return table.concat(ret)

return table.concat(ret)