rename progress.md

docs/PROGRESS.md → docs/README.md

-Tracking progress on revamping documentation pages for the refactor of LM-Evaluation-Harness.
+# Eval Harness Documentation
+
+Welcome to the docs for the LM Evaluation Harness! 
+
+## Table of Contents
 
+* To learn how to add a new library, API, or model type to the library, as well as a quick explainer on the types of ways to evaluate an LM, see the [Model Guide](https://github.com/EleutherAI/lm-evaluation-harness/blob/big-refactor/docs/model_guide.md).
+* For a crash course on adding new tasks to the library, see our [New Task Guide](https://github.com/EleutherAI/lm-evaluation-harness/blob/big-refactor/docs/new_task_guide.md).
+* To learn more about pushing the limits of task configuration that the Eval Harness supports, see the [Advanced Task Guide](https://github.com/EleutherAI/lm-evaluation-harness/blob/big-refactor/docs/advanced_task_guide.md).
+
+## Progress on Revamp
+
+Tracking progress on revamping documentation pages for the refactor of LM-Evaluation-Harness.
 
-## Desired Pages
+### Desired Pages
 
 * [ ] YAML explainer
   * [ ] Explainer on filters + advanced features
@@ -9,4 +20,4 @@ Tracking progress on revamping documentation pages for the refactor of LM-Evalua
 * [ ] Explaining registries + decorators
 * [ ] model_guide.md for adding new model API
   * [ ] guide to writing an adapter to new advanced codebase (e.g. NeoX)
-* [ ] Parallelism guide (?)
+* [ ] Parallelism guide (?)
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