Add license and support information (#56)

LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015-present 650 Industries, Inc. (aka Expo)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -2,6 +2,9 @@
 
 This repo contains a server and client that implement the [Expo Updates protocol specification](https://docs.expo.dev/technical-specs/expo-updates-0).
 
+> [!IMPORTANT]
+> This repo exists to provide a basic demonstration of how the protocol might be translated to code. It is not guarantted to be complete, stable, or performant enough to use as a backend for expo-updates. Expo does not provide hands-on technical support for custom expo-updates server implementations, including what is in this repo.
+
 ## Why
 
 Expo provides a set of service named EAS (Expo Application Services), one of which is EAS Update which can host and serve updates for an Expo app using the [`expo-updates`](https://github.com/expo/expo/tree/main/packages/expo-updates) library.