[docs] Restructure documentation, clarify some parts

docs/status/supported.md

@@ -0,0 +1,44 @@
+# Supported boards, modules and CPUs
+
+## Board list
+
+{%
+   include-markdown "supported_boards.md"
+%}
+
+\* I/O count includes GPIOs, ADCs, PWM outputs and UART, but doesn't count CEN/RST and power pins.
+
+## CPU list
+
+Chips currently supported by the project:
+
+{%
+   include-markdown "supported_chips.md"
+%}
+
+This list is not exhaustive, i.e. a similar chip (but different package) might work just fine, but there's no board definition for it yet.
+If you have an unsupported chip, feel free to reach out using Issues or on the Discord server.
+
+## Families
+
+A list of chip families currently supported by this project.
+
+!!! note
+    The term *family* was chosen over *platform*, in order to reduce possible confusion between LibreTuya supported "platforms" and PlatformIO's "platform", as an entire package. *Family* is also more compatible with the UF2 term.
+
+The following list corresponds to UF2 OTA format family names, and is also [available as JSON](../../families.json). The IDs are also present in [ChipType.h](../../ltapi/_chip_type_8h_source.md).
+
+{%
+   include-markdown "supported_families.md"
+%}
+
+## Unsupported boards
+
+### Tuya Inc.
+
+!!! note
+    Only modules featuring at least Wi-Fi are included in the table. (TY)JW, (TY)WE and (TY)LC Series are omitted, as they contain Espressif chips.
+
+{%
+   include-markdown "unsupported_boards_tuya_all.md"
+%}