Fix #8: Rename README.md.md to README.md in itt_solver/

itt_solver/README.md

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+# ARC-AGI Reproduction Project
+
+**Project goal**  
+Recreate the system described in *A Pre-Emergence Mechanics Framework for Solving the Abstraction and Reasoning Corpus ARC-AGI* by Achilles. The codebase implements a boundary constrained field solver (Intent Tensor Theory substrate) and a beam search driver to propose transforms that reduce L1 residue against ARC tasks.
+
+**Current status**  
+- Core driver `itt_solver/experiment_driver.py` runs experiments and saves artifacts to `experiments/`.  
+- Runs complete and save `*_phi_best.npy`, `*_logs.json`, `*_result.json`.  
+- Immediate blockers discovered and addressed: W&B recursion removed; logging lacked candidate arrays; some transforms were no-ops. Diagnostics and small patches are in `experiments/` and `itt_solver/` to inspect and fix behavior.  
+- Smoke tests show the beam accepts candidates but residue has not decreased for the example task. See `experiments/` for logs.
+
+**Quick start minimal run**
+1. Install dependencies (if not present): `numpy`, `matplotlib`.  
+2. From project root run a single job in a notebook cell:
+```python
+from itt_solver.experiment_driver import default_atomic_factory, run_single
+# build task and params (example provided in repo)
+res = run_single(task, default_atomic_factory(params, task), params, out_dir="experiments")
+print(res)
+```