Can you tell me how to format an url in rst?
In reStructuredText, URLs are formatted using the standard inline format, which is as follows:

```
`URL name <URL link>`_
```

For example, if you want to link to the Google homepage, the formatting would look like this:

```
`Google <https://www.google.com>`_
```

The _ at the end of the line is important, as it allows the URL to be recognized as an active link by reStructuredText parsers.
Can you tell what is the URL decoded string of %21
The URL decoded string of %21 is !