Prometheus: Frontend library update version and readme (#81922)

update version and readme

packages/grafana-prometheus/README.md

@@ -1,5 +1,13 @@
 # Grafana Prometheus Library
 
-> **@grafana/prometheus is currently in BETA**.
+> **@grafana/prometheus is currently in ALPHA**.
 
-This package is a frontend library for Prometheus
+@grafana/prometheus is a collection of components used to build a Prometheus data source plugin in [Grafana](https://github.com/grafana/grafana).
+
+See [package source](https://github.com/grafana/grafana/tree/main/packages/grafana-prometheus) for more details.
+
+## Installation
+
+`yarn add @grafana/ui`
+
+`npm install @grafana/ui`

packages/grafana-prometheus/package.json

@@ -3,7 +3,7 @@
   "license": "Apache-2.0",
   "name": "@grafana/prometheus",
   "private": true,
-  "version": "10.4.0-pre",
+  "version": "0.0.1",
   "description": "Grafana Prometheus Library",
   "keywords": [
     "typescript"