add mkdocs

docs/widgets/services/kopia.md

@@ -0,0 +1,18 @@
+---
+title: Kopia
+description: Kopia Widget Configuration
+---
+
+Allowed fields: `["status", "size", "lastrun", "nextrun"]`.
+
+You may optionally pass values for `snapshotHost` and / or `snapshotPath` to select a specific backup source for the widget.
+
+```yaml
+widget:
+    type: kopia
+    url: http://kopia.host.or.ip:port
+    username: username
+    password: password
+    snapshotHost: hostname # optional
+    snapshotPath: path # optional
+```