chore: Update README file (#1)

chore: Update README file

chore: Update README

README.md

@@ -1,2 +1,12 @@
-# celest
-The cloud platform for Flutter
+<img src="https://github.com/celest-dev/.github/assets/17932473/880aff87-b4ab-4a61-9eb3-a18601ebf0a9" width="160" height="160">
+
+## Celest
+
+[Celest](https://celest.dev) is the Flutter cloud platform. We enable Flutter and Dart developers to declaratively define their backend infrastructure in Dart.
+
+You can join our waitlist at [celest.dev](https://celest.dev). To learn more about our values and how we operate, visit our [about us](https://celest.dev/about-us/) page.
+
+## Connect with us
+
+- Follow our [Twitter](https://twitter.com/Celest_Dev) account.
+- Email us at [email protected]