Docusaurus-ify 1.19 (#26053)

See https://github.com/go-gitea/gitea/pull/26051

---------

Signed-off-by: jolheiser <john.olheiser@gmail.com>
Co-authored-by: Giteabot <teabot@gitea.io>

docs/content/usage.en-us.md

@@ -0,0 +1,13 @@
+---
+date: "2016-12-27T16:00:00+02:00"
+title: "Usage"
+slug: "usage"
+sidebar_position: 35
+toc: false
+draft: false
+menu:
+  sidebar:
+    name: "Usage"
+    sidebar_position: 30
+    identifier: "usage"
+---