FEATURE: make the link in the ansi extra usage an ANSI link (#8795)

# Description
this addresses the comments of @fdncred from
https://github.com/nushell/nushell/issues/8713#issuecomment-1498206087

the exact ANSI link has been generated with
```bash
"https://en.wikipedia.org/wiki/ANSI_escape_code" | ansi link --text "ANSI escape code" | debug -r
```

# User-Facing Changes
there is now an ANSI link in the `ansi` help page instead of a markdown
link.

# Tests + Formatting
```
$nothing
```

# After Submitting
```
$nothing
```
This commit is contained in:
Antoine Stevan 2023-04-07 20:39:51 +02:00 committed by GitHub
parent 1b677f167e
commit 49960beb35
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@ -533,7 +533,7 @@ impl Command for AnsiCommand {
fn extra_usage(&self) -> &str {
"An introduction to what ANSI escape sequences are can be found in the
[*ANSI escape code*](https://en.wikipedia.org/wiki/ANSI_escape_code) Wikipedia page.
\u{1b}]8;;https://en.wikipedia.org/wiki/ANSI_escape_code\u{1b}\\ANSI escape code\u{1b}]8;;\u{1b}\\ Wikipedia page.
Escape sequences usual values: