update generator theme version

Author: kakawait

layouts/partials/meta.html

@@ -1,7 +1,7 @@
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
-<meta name="generator" content="Hugo {{ hugo.Version }} with theme Tranquilpeak 0.4.3-SNAPSHOT">
+<meta name="generator" content="Hugo {{ hugo.Version }} with theme Tranquilpeak 0.4.6-BETA">
 <meta name="author" content="{{ .Site.Author.name }}">
 <meta name="keywords" content="{{ with .Keywords }}{{ delimit . ", " }}{{ end }}{{ if .Site.Params.keywords }}, {{ delimit .Site.Params.keywords ", " }}{{ end }}">
 <meta name="description" content="{{ if .Description }}{{ .Description }}{{ else if .IsPage }}{{ .Summary }}{{ else }}{{ .Site.Params.description }}{{ end }}">