Updated Features (markdown)

Features.md

@@ -71,4 +71,5 @@
 - **APRS messages**, show all message groups, clicking on the group will open message list
   - Click on "Delete all" to remove all messages and all groups
   - Long click on the message group to remove that group only
-  - Click on the message group to open list of messages to that group with send button
+  - Click on the message group to open list of messages to that group with send button
+- **APRS map**, show station positions on the map