diff --git a/README.md b/README.md
index ffa41578..85cc9a2e 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,7 @@ cargo install --path .
 
 ## Command-line usage
 
+
 ```bash
 mdtablefix [--wrap] [--renumber] [--breaks] [--ellipsis] [--fences] [--footnotes] [--in-place] [FILE...]
 ```
@@ -110,8 +111,8 @@ A brief intermission for pizza.
 
 ## Library usage
 
-The crate provides helper functions for embedding the table reflow logic in
-your own Rust project:
+The crate exposes helper functions for embedding the table-reflow logic in
+Rust projects:
 
 ```rust
 use mdtablefix::{process_stream_opts, rewrite, Options};
diff --git a/docs/parallel-processing-roadmap.md b/docs/parallel-processing-roadmap.md
new file mode 100644
index 00000000..4ab98234
--- /dev/null
+++ b/docs/parallel-processing-roadmap.md
@@ -0,0 +1,23 @@
+# Roadmap for Parallel File Processing
+
+The command-line tool currently processes input files sequentially. The steps
+below outline the work required to allow concurrent processing while preserving
+serial output order.
+
+- [ ] **Adopt `rayon` for concurrency**
+  - Use `rayon` thread pools to spawn work for each file path.
+  - Ensure the approach integrates cleanly with existing modules.
+- [ ] **Add chosen crate to `Cargo.toml`**
+  - Pin an explicit version and document the decision in `docs/`.
+- [ ] **Refactor `main.rs` to launch parallel tasks**
+  - Spawn a worker for each file path using the concurrency crate.
+  - Maintain a list of handles so outputs can be gathered in order.
+- [ ] **Collect results sequentially**
+  - Await or join handles in the same order the files were supplied.
+  - Print each processed file or error message before moving to the next.
+- [ ] **Extend tests for parallel execution**
+  - Use `rstest` to verify that processing many files yields correct results.
+  - Add tests exercising error handling when some paths are invalid.
+- [ ] **Update documentation**
+  - Document the new flags or behaviour in `README.md` and module docs.
+  - Note any concurrency caveats or performance implications.