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

[Eli Bendersky]

Eli Bendersky <eliben at gmail.com> added the comment:

Regarding the use of the name "variable", could it be replaced by just "name" ? That might make sense since the error for undefined "names" is usually NameError. However, note that the current documentation has a /huge/ amount of mentions for "variable", so we may be too late to the party.

Éric - the word "degenerate" is considered offensive in a couple of languages I speak, but the docs are written in English, so the important point is whether this word is offensive *in English*. If not, I see no reason to drop it.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue14097>
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