Update Readme for alpha -> beta

Author: benitav

packages/powersync-react/README.md

@@ -1,6 +1,6 @@
 # React components for PowerSync
 
-This package is currently in an alpha release. Functionality could change dramatically in future releases. Certain functions may be partially implemented or buggy.
+This package is currently in a beta release.
 
 ## Context
 Configure a PowerSync DB connection and add it to a context provider.

packages/powersync-sdk-common/README.md

@@ -1,5 +1,5 @@
-# Alpha
-This package is currently in an alpha release. Functionality could change dramatically in future releases. Certain functions may be partially implemented or buggy.
+# Beta
+This package is currently in a beta release.
 
 
 # PowerSync SDK common JS

packages/powersync-sdk-react-native/README.md

@@ -1,9 +1,9 @@
 # PowerSync SDK for React Native
 
-[PowerSync](https://powersync.co) is a service and set of SDKs that keeps PostgreSQL databases in sync with on-device SQLite databases.
+[PowerSync](https://powersync.co) is a service and set of SDKs that keeps Postgres databases in sync with on-device SQLite databases. See a summary of features [here](https://docs.powersync.co/resources/api-reference#react-native-and-expo).
 
-## Alpha Release
-This React Native SDK package is currently in an alpha release. Functionality could change dramatically in future releases. Certain functions may be partially implemented or buggy.
+## Beta Release
+This React Native SDK package is currently in a beta release.
 
 # Installation
 
@@ -23,7 +23,6 @@ Install it in your app with:
 npx expo install @journeyapps/react-native-quick-sqlite
 ```
 
-
 ## Polyfills: Fetch
 
 This SDK requires HTTP streaming in order to function. The following `fetch` polyfills are required for the React Native implementation of `fetch`: 
@@ -88,17 +87,6 @@ This package uses native libraries. Create native Android and iOS projects (if n
 npx expo run:android
 ```
 
-# SDK Features
-
- * Direct access to the SQLite database - use SQL on the client and server.
- * Operations are asynchronous by default - does not block the UI.
- * No need for client-side database migrations - these are handled automatically.
- * Real-time streaming of changes.
- * Subscribe to queries for live updates.
-
- Upcoming features:
- * Support one write and many reads concurrently.
-
 # Getting Started
 
 ## Declare the Schema