[docs] [issue14097] Improve the "introduction" page of the tutorial

Raymond Hettinger <raymond.hettinger@gmail.com> added the comment: some of theses are great suggestions. I'll do an update shortly. ---------- assignee: docs@python -> rhettinger nosy: +rhettinger _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue14097> _______________________________________