simple release intro text

build/release-intro.md

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+![CJIT logo](docs/cjit-logo.png)
+
+## CJIT binary releases
+
+This project is in its infancy! You are welcome to get in touch with us via [dyne.org channels](https://dyne.org/contact).
+
+For more information see our [website](https://dyne.org/cjit) and [source repository](https://github.com/dyne/cjit).
+
+![Software by Dyne.org](https://files.dyne.org/software_by_dyne.png)