[users] Tables in Gemtext

[A. E. Spencer-Reed]

It looks like no one has mentioned box-drawing characters yet, they
look good, are supported as part of UTF-8, and I suspect they'd be
easy to parse.
```
????????????????
? Text ? goes  ?
????????????????
? in   ? these ?
????????????????
```
There are other styles that would need to be accounted for, like
```
????????
? Bold ?
????????
```
or
```
??????????
? Double ?
??????????
```
borders.

=> https://en.wikipedia.org/wiki/Box-drawing_character#Unicode More
information about box drawing characters