moving everything neatly into the assets directory

assets/disk0/tbas/doc/intro.tex

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+\tbas\ is a BASIC dialect and its interpreter. \tbas\ emulates most of the common BASIC syntax while adds more advanced and up-to-date concepts gracefully, such as user-defined function that can \emph{actually} recurse, arbitrary list construction using CONS-operator and some of the features in the realm of functional programming from \code{MAP} and \code{FOLD} to \code{CURRY}-ing a function.
+
+This is the documentation for \tbas\ \tbasver.
+
+\vfill
+
+\small\emph{Henceforward this documentation will use more friendly and sometimes vulgar language because that's more fun to write!}