Import docs into main repository (#2874)

* import docs into main repository

Signed-off-by: Matti Ranta <matti@mdranta.net>

docs/docker/caddy.conf

@@ -0,0 +1,39 @@
+:80 {
+  root /srv/www
+
+  locale en-US zh-CN zh-TW pt-BR nl-NL {
+    detect header
+  }
+
+  redir 301 {
+    if {path} match ^/$
+    / /{>Detected-Locale}/
+  }
+
+  rewrite /en-US/ {
+    regexp (.*)
+    to /en-us/{1}
+  }
+
+  rewrite /zh-CN/ {
+    regexp (.*)
+    to /zh-cn/{1}
+  }
+
+  rewrite /zh-TW/ {
+    regexp (.*)
+    to /zh-tw/{1}
+  }
+
+  rewrite /pt-BR/ {
+    regexp (.*)
+    to /pt-br/{1}
+  }
+
+  rewrite /nl-NL/ {
+    regexp (.*)
+    to /nl-nl/{1}
+  }
+
+  header / Vary "Accept-Language"
+}