[feature] add readme

Author: 11notes

project.md

@@ -0,0 +1,17 @@
+${{ content_synopsis }} This image will run a proxy to access your docker socket read-only. The exposed proxy socket is run as 1000:1000, not as root, although the image starts the proxy process as root to interact with the actual docker socket as root. There is also a TCP endpoint started at 8080 that will also proxy to the actual docker socket if needed.
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+${{ content_compose }}
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+${{ content_defaults }}
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+${{ content_environment }}
+| `SOCKET_PROXY` | path to the socket used as a proxy | ${{ json_root }}$/run/docker.sock |
+| `SOCKET_PROXY_DOCKER_SOCKET` | path to the actual docker socket | /run/docker.sock |
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+${{ content_source }}
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+${{ content_parent }}
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+${{ content_built }}
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+${{ content_tips }}