diff --git a/config.default.yml b/config.default.yml
index bb05e54..047734f 100644
--- a/config.default.yml
+++ b/config.default.yml
@@ -1,7 +1,14 @@
 providers:
   local:
     kind: docker
+    # for value format, see https://docs.docker.com/reference/cli/dockerd/
     value: FROM_ENV
+  remote1:
+    kind: docker
+    value: ssh://user@10.0.1.1
+  remote2:
+    kind: docker
+    value: tcp://10.0.1.1:2375
   # provider1:
   #   kind: file
   #   value: provider1.yml
diff --git a/providers.example.yml b/providers.example.yml
index 12d410e..7a952dc 100644
--- a/providers.example.yml
+++ b/providers.example.yml
@@ -1,4 +1,4 @@
-app: # alias
+app: # matching `app.y.z`
   # optional
   scheme: http
   # required, proxy target
@@ -10,4 +10,6 @@ app: # alias
   # optional
   path_mode:
   # optional
-  notlsverify: false
\ No newline at end of file
+  notlsverify: false
+# app2:
+#   ...
\ No newline at end of file