Move relay docs to a separate file

docs/administration/CLI_tasks/relay.md

@@ -0,0 +1,30 @@
+# Managing relays
+
+Every command should be ran with a prefix, in case of OTP releases it is `./bin/pleroma_ctl relay` and in case of source installs it's `mix pleroma.relay`.
+
+## Follow a relay
+```sh
+$PREFIX follow <relay_url>
+```
+
+Example:
+```sh
+$PREFIX follow https://example.org/relay
+```
+
+## Unfollow a remote relay
+
+```sh
+$PREFIX unfollow <relay_url>
+```
+
+Example:
+```sh
+$PREFIX unfollow https://example.org/relay
+```
+
+## List relay subscriptions
+
+```sh
+$PREFIX list
+```

lib/mix/tasks/pleroma/relay.ex

@@ -9,25 +9,7 @@ defmodule Mix.Tasks.Pleroma.Relay do
   alias Pleroma.Web.ActivityPub.Relay
 
   @shortdoc "Manages remote relays"
-  @moduledoc """
-  Manages remote relays
 
-  ## Follow a remote relay
-
-  ``mix pleroma.relay follow <relay_url>``
-
-  Example: ``mix pleroma.relay follow  https://example.org/relay``
-
-  ## Unfollow a remote relay
-
-  ``mix pleroma.relay unfollow <relay_url>``
-
-  Example: ``mix pleroma.relay unfollow https://example.org/relay``
-
-  ## List relay subscriptions
-
-  ``mix pleroma.relay list``
-  """
   def run(["follow", target]) do
     start_pleroma()