[clang-format] Fix documentation build error

https://github.com/llvm/llvm-project/actions/runs/9342063971/job/25709589592

Author: owenca

clang/include/clang/Format/Format.h

@@ -4806,6 +4806,7 @@ struct FormatStyle {
   ///   TableGenBreakInsideDAGArg: BreakAll
   ///   TableGenBreakingDAGArgOperators: [ins, outs]
   /// \endcode
+  ///
   /// makes the line break only occurs inside DAGArgs beginning with the
   /// specified identifiers ``ins`` and ``outs``.
   ///