docs: fix duplicated format anchor in plugin_ls

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
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CrazyMax 2023-01-13 16:24:43 +01:00
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@ -38,7 +38,7 @@ ID NAME DESCRIPTION
69553ca1d123 tiborvass/sample-volume-plugin:latest A test plugin for Docker true
```
### <a name="format"></a> Filtering (--filter)
### <a name="filter"></a> Filtering (--filter)
The filtering flag (`-f` or `--filter`) format is of "key=value". If there is more
than one filter, then pass multiple flags (e.g., `--filter "foo=bar" --filter "bif=baz"`)