Incorrect default value for dotfiles in docs for express.static

[thomas-haufe]

I think the default value mentioned at https://github.com/expressjs/expressjs.com/blob/gh-pages/_includes/api/en/4x/express.static.md#expressstaticroot-options is incorrect. It says in the table that the default value is 'ignore', but in the detailed docs at https://github.com/expressjs/expressjs.com/blob/gh-pages/_includes/api/en/4x/express.static.md#dotfiles which are linked in the table, it says this:

With the default value, it will not ignore files in a directory that begins with a dot.

The actual default value seems to be 'allow'.

(The docs for v5 have the same table with the same default value but I don't know whether the behavior changed for v5.)

[lamdevhs]

I second that there's an issue but the default value isn't "allow" either, it's just some value that isn't actually any of the three proposed (which is definitely a design flaw, IMHO). The serve-static doc is much clearer on that respect:

https://github.com/expressjs/serve-static/blob/9b5a12a76f4d70530d2d2a8c7742e9158ed3c0a4/README.md?plain=1#L59-L60

The default value is similar to `'ignore'`, with the exception that this
default will not ignore the files within a directory that begins with a dot.

Please fix the doc of express to match! I spent half an hour trying to find a solution to hide my .git folders from my public tree before finding this discrepancy and realizing that, in fact, the solution was to set dotfiles to 'ignore', which is counter-intuitive when express's doc says it is already the default value!