feat(docs): Provide current status of Displays

docs/docs/features/displays.md

@@ -1,6 +1,10 @@
 ---
-title: OLED Displays
-sidebar_label: OLED Displays
+title: Displays
+sidebar_label: Displays
 ---
 
-TODO: Documentation on OLED displays.
+Displays in ZMK are currently a proof of concept and official support is coming soon.
+
+:::info
+Although ZMK-powered keyboards _are_ capable of utilizing OLED and ePaper displays, the Displays feature is not yet considered production-ready due to an issue where the display remains blank after resuming from [external power cutoff](../behaviors/power#external-power-control). This issue can be tracked on GitHub at [zmkfirmware/zmk #674](https://github.com/zmkfirmware/zmk/issues/674).
+:::