📖 Update Ghost bootstrap logs (#8531)

refs #7421

Change Alpha wording to beta wording for the bootstrap logs.

core/server/ghost-server.js

@@ -193,14 +193,14 @@ GhostServer.prototype.logStartMessages = function () {
     // Startup & Shutdown messages
     if (config.get('env') === 'production') {
         console.log(
-            chalk.red('Currently running Ghost 1.0.0 Alpha, this is NOT suitable for production! \n'),
+            chalk.red('Currently running Ghost 1.0.0 Beta, this is NOT suitable for production! \n'),
             chalk.white('Please switch to the stable branch. \n'),
-            chalk.white('More information on the Ghost 1.0.0 Alpha at: ') + chalk.cyan('https://support.ghost.org/v1-0-alpha') + '\n',
+            chalk.white('More information on the Ghost 1.0.0 Beta at: ') + chalk.cyan('https://dev.ghost.org/1-0-0-beta') + '\n',
             chalk.gray(i18n.t('notices.httpServer.ctrlCToShutDown'))
         );
     } else {
         console.log(
-            chalk.blue('Welcome to the Ghost 1.0.0 Alpha - this version of Ghost is for development only.')
+            chalk.yellow('Welcome to the Ghost 1.0.0 Beta - this version of Ghost is for development only.')
         );
         console.log(
             chalk.green(i18n.t('notices.httpServer.ghostIsRunningIn', {env: config.get('env')})),