Update docs

tests/main.lua

@@ -117,7 +117,7 @@ local function main(item)
       fail = fail + 1
     end
   end
-  local elapsed = time:elapsed()
+  local elapsed = time:elapsed_secs()
   local code = 1
   if fail == 0 then
     print("", style("pass", ("%s %d tests passed"):format(icon.check, pass)))