[docs] keeps lib docs in sync with README.md

src/lib.rs

@@ -40,7 +40,7 @@
 //!
 //! ## Limitations
 //!
-//! *Things it does not preserve:
+//! Things it does not preserve:
 //!
 //! * Different quotes and spaces around the same table key, e.g.
 //!
@@ -58,16 +58,17 @@
 //! ['a'.d]
 //! ```
 //!
-//! * Children tables before parent table (tables are reordered, see [test]).
-//! * Scattered array of tables (tables are reordered, see [test]).
+//! * Children tables before parent table (tables are reordered by default, see [test]).
+//! * Scattered array of tables (tables are reordered by default, see [test]).
 //!
 //! The reason behind the first limitation is that `Table` does not store its header,
 //! allowing us to safely swap two tables
 //! (we store a mapping in each table: child key -> child table).
 //!
 //! This last two limitations allow us to represent a toml document as a tree-like data structure,
 //! which enables easier implementation of editing operations
-//! and an easy to use and type-safe API.
+//! and an easy to use and type-safe API. If you care about the above two cases,
+//! you can use `Document::to_string_in_original_order()` to reconstruct tables in their original order.
 //!
 //! [test]: https://github.com/ordian/toml_edit/blob/f09bd5d075fdb7d2ef8d9bb3270a34506c276753/tests/test_valid.rs#L84