Add description to v1/markers (#1459)

content/en/methods/markers.md

@@ -24,6 +24,8 @@ aliases: [
 GET /api/v1/markers HTTP/1.1
 ```
 
+Get current positions in timelines.
+
 **Returns:** Hash of timeline key and associated [Marker]({{< relref "entities/Marker" >}})\
 **OAuth:** User token + `read:statuses`\
 **Version history:**\
@@ -79,6 +81,8 @@ Invalid or missing Authorization header.
 POST /api/v1/markers HTTP/1.1
 ```
 
+Save current position in timeline.
+
 **Returns:** [Marker]({{< relref "entities/marker" >}})\
 **OAuth:** User token + `write:statuses`\
 **Version history:**\
@@ -142,4 +146,4 @@ If object is stale while being updated, an error will occur.
 
 {{< page-relref ref="methods/notifications#get" caption="GET /api/v1/notifications (with `min_id` or `since_id` parameter)" >}}
 
-{{< caption-link url="https://github.com/mastodon/mastodon/blob/main/app/controllers/api/v1/markers_controller.rb" caption="app/controllers/api/v1/markers_controller.rb" >}}
+{{< caption-link url="https://github.com/mastodon/mastodon/blob/main/app/controllers/api/v1/markers_controller.rb" caption="app/controllers/api/v1/markers_controller.rb" >}}