add mkdocs

docs/widgets/services/transmission.md

@@ -0,0 +1,17 @@
+---
+title: Transmission
+description: Transmission Widget Configuration
+---
+
+Uses the same username and password used to login from the web.
+
+Allowed fields: `["leech", "download", "seed", "upload"]`.
+
+```yaml
+widget:
+    type: transmission
+    url: http://transmission.host.or.ip
+    username: username
+    password: password
+    rpcUrl: /transmission/ # Optional. Matches the value of "rpc-url" in your Transmission's settings.json file
+```