clearer instructions in README

Author: tadamcz

README.md

@@ -1 +1,17 @@
-Docker image registry for SWE-bench, created by [Epoch AI](https://epochai.org).
+This README describes the [Epoch AI](https://epoch.ai) Docker image registry for SWE-bench. 
+
+[registry_packages]: https://github.com/orgs/epoch-research/packages?repo_name=SWE-bench
+
+# How to use our image registry
+Our [image registry][registry_packages] is public, MIT-licensed, and hosted on [GitHub Container Registry](https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry). Each image can be accessed by its name, and we follow the same naming pattern as the original SWE-bench authors. At the moment, all images only have the tag `latest`.
+
+The naming format is `ghcr.io/epoch-research/swe-bench.eval.<arch>.<instance_id>`, for example `ghcr.io/epoch-research/swe-bench.eval.x86_64.astropy__astropy-13236`.
+
+For `x86_64`, we're able to build 2290/2294 (99.8%) of the images, and all 500/500 out of the SWE-bench Verified set.
+
+For `arm64`, 1819 (out of 2294) images are provided on a best-effort basis, and have not been tested.
+
+
+
+# Launch blog post 
+[How to run SWE-bench Verified in one hour on one machine](https://epoch.ai/blog/swebench-docker), Epoch AI blog