Update README.md

Author: aduarterengifo

README.md

@@ -30,4 +30,12 @@ python test.py
 - Merges most frequent pairs iteratively
 - Outputs vocabulary and merge operations
 
-Core algorithm in Rust for speed. Python handles I/O and orchestration.
+Core algorithm in Rust for speed. Python handles I/O and orchestration.
+
+## Future Work 
+
+- [ ] fix linked-array implementation.
+
+## Acknowledgements 
+
+Made while following CS336.