[clang-tools-extra] [clang-tidy][NFC] Fix formatting issue in `clang-tidy` documentations (PR #168722)

[via cfe-commits]

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@@ -123,10 +124,10 @@ custom reason.
    ::std::original(); // no-warning
    original_function(); // no-warning
 
-If the regular expression contains the character ``:``, it is matched against the
-qualified name (i.e. ``std::original``), otherwise the regex is matched against
-the unqualified name (``original``). If the regular expression starts with ``::``
-(or ``^::``), it is matched against the fully qualified name
+If the regular expression contains the character ``:``, it is matched against
+the qualified name (i.e. ``std::original``), otherwise the regex is matched
+against the unqualified name (``original``). If the regular expression starts
+with ``::`` (or ``^::``), it is matched against the fully qualified name
----------------
EugeneZelenko wrote:

```suggestion
with `::` (or `^::`), it is matched against the fully qualified name
```

https://github.com/llvm/llvm-project/pull/168722