docs: say that the packages are on npm and Packagist

src/content/docs/guides/html.md

@@ -10,8 +10,6 @@ sidebar:
 
 ## Install
 
-The first alpha is not published yet. This page will say when it is.
-
 ```sh
 pnpm add @gatepost/field
 ```

src/content/docs/guides/php.md

@@ -10,8 +10,6 @@ sidebar:
 
 ## Install
 
-The first alpha is not published yet. This page will say when it is.
-
 ```sh
 composer require gatepost/postcode:^0.1@alpha
 ```

src/content/docs/guides/react.md

@@ -10,8 +10,6 @@ sidebar:
 
 ## Install
 
-The first alpha is not published yet. This page will say when it is.
-
 ```sh
 pnpm add @gatepost/react
 ```

src/content/docs/guides/typescript-client.md

@@ -10,8 +10,6 @@ sidebar:
 
 ## Install
 
-The first alpha is not published yet. This page will say when it is.
-
 ```sh
 pnpm add @gatepost/client
 ```

src/content/docs/guides/typescript.md

@@ -10,8 +10,6 @@ sidebar:
 
 ## Install
 
-The first alpha is not published yet. This page will say when it is.
-
 ```sh
 pnpm add @gatepost/core
 ```

src/content/docs/validate-postcode.md

@@ -20,8 +20,6 @@ Each example below checks the format. It accepts spaces, hyphens and any letter
 pnpm add @gatepost/core
 ```
 
-The first alpha is not published yet. This page will say when it is.
-
 ```ts
 import { parse } from '@gatepost/core';
 

src/release-state.json

@@ -1,4 +1,4 @@
 {
-  "state": "not published",
+  "state": "published",
   "plugin": "not published"
 }