fix(docs): Fix GH release link

docs/layouts/docs/baseof.html

@@ -18,7 +18,7 @@
             {{ partial "docs/menu-filetree" . }}
             {{ end }}
             <div class="version">
-                <a href="https://github.com/vendure-ecommerce/vendure/releases/tag/{{ $.Site.Data.build.version }}">
+                <a href="https://github.com/vendure-ecommerce/vendure/releases/tag/v{{ $.Site.Data.build.version }}">
                     v{{ $.Site.Data.build.version }}</a>#<a href="https://github.com/vendure-ecommerce/vendure/commit/{{ $.Site.Data.build.commit }}">{{ $.Site.Data.build.commit }}
                 </a>
             </div>