fix docs

README.md

@@ -1,22 +1,63 @@
 # ZMK Firmware for Dao keyboard
 
+This is a repository for a ZMK Firmware for both Dao42 and Dao44 keyboards.
+
+* [main](https://github.com/yumagulovrn/dao-zmk-config/tree/main) branch is for Dao42
+* [dao44](https://github.com/yumagulovrn/dao-zmk-config/tree/dao44) branch is, obviously, for Dao44
+
 ## Default keymap
 
+### Dao42
+
+Visual representation of the default keymap in keyboard-layout-editor: [KLE](http://www.keyboard-layout-editor.com/#/gists/67a81f6b83c65abcda5e7f32989a1688)
+
+This layout is heavily inspired by [this](https://github.com/aroum/Watchman-layouts)
 
 ### Dao44
 
 Visual representation of the default keymap in keyboard-layout-editor: [KLE](http://www.keyboard-layout-editor.com/#/gists/c6ba0634e5b92366be9f324775394e66)
 
 This layout is heavily inspired by [this](https://github.com/KGOH/Jian-Info)
 
-### Dao42
+Because of current ZMK limitations, Dao44 keymap is in the branch [dao44](https://github.com/yumagulovrn/dao-zmk-config/tree/dao44)
 
-Visual representation of the default keymap in keyboard-layout-editor: [KLE](http://www.keyboard-layout-editor.com/#/gists/67a81f6b83c65abcda5e7f32989a1688)
+## FAQ
 
-Because of current ZMK limitations, Dao42 keymap is in the branch [dao42](https://github.com/yumagulovrn/dao-zmk-config/tree/dao42)
+- [FAQ](#faq)
+  - [How to change the keymap?](#how-to-change-the-keymap)
+  - [How to flash the keyboard?](#how-to-flash-the-keyboard)
+  - [How to pair halves?](#how-to-pair-halves)
+  - [Problems](#problems)
+    - [I'm getting File Transfer Error after copying firmware to the keyboard](#im-getting-file-transfer-error-after-copying-firmware-to-the-keyboard)
 
-This layout is heavily inspired by [this](https://github.com/aroum/Watchman-layouts)
+### How to change the keymap?
+
+1. Fork the repository https://github.com/yumagulovrn/dao-zmk-config
+2. Make changes to the [dao.keymap](../config/boards/arm/dao/dao.keymap) file in your repository
+3. Commit changes to your repository
+4. Go to `Actions` tab in your repository
+5. Wait for the GitHub Action to complete
+6. Grab `firmware.zip` file - it contains firmware for both of your halves
+
+### How to flash the keyboard?
+
+1. Obtain `firmware.zip`
+2. Unzip `firmware.zip` - you should have `dao_left.uf2` and `dao_right.uf2` files
+3. Turn off the power for selected halve (move slider to position `OFF`)
+4. Connect selected halve to the PC via USB-C cable
+5. Press `RESET` button **twice** to enter DFU mode - you should see new USB device in your file manager
+6. Copy the corresponding firmware to the root directory of the new USB device
+7. Disconnect selected halve from the PC
+8. Repeat steps 3-7 for the other halve
+
+### How to pair halves?
+
+1. Turn off the power for both halves (move slider to position `OFF`)
+2. Turn on the power for both halves (move slider to position `ON`)
+3. Press `RESET` button **once** on both halves **simultaneously**
+
+### Problems
 
-## Documentation
+#### I'm getting File Transfer Error after copying firmware to the keyboard
 
-Answers to frequently asked questions can be found in [FAQ](docs/FAQ.md)
+It's OK. Proof: https://zmk.dev/docs/troubleshooting#file-transfer-error