Updated the config section

- Made "metadata" & "requirements"
- Reorderd metadata steps
- Removed a unneeded statement as it is already written in the requirements section
- Added notice to please retain the given order of fields

Author: MagicLike

README.md

@@ -195,14 +195,14 @@ If you want to use the tool for a non-supported smartphone, the fastest way is t
 A config file consists of two parts. The first part are some metadata about the device and the second parts are the steps to unlock the bootloader, boot a recovery and install the ROMs.
 
 ##### How to write Metadata
-Every config file should have metadata with the following fields:
+Every config file should have `metadata` with the following fields:
 - `maintainer`: str; Maintainer and author of the config file.
 - `device_name`: str; Name of the device.
 - `device_code`: str; The official device code.
 - `supported_device_codes`: List[str]; A list of supported device codes for the config. The config will be loaded based on this field.
 - `twrp-link`: [OPTIONAL] str; name of the corresponding twrp page.
 
-In addition to these metadata, every config can have optional requirements. If these are set, the user is asked to check if they are meet.
+In addition to these metadata, every config can have optional `requirements`. If these are set, the user is asked to check if they are meet.
 - `android`: [OPTIONAL] int|str; Android version to install prior to installing a custom ROM.
 - `firmware`: [OPTIONAL] str; specific firmware version to install before installing a custom ROM.
 
@@ -214,13 +214,13 @@ Every step in the config file corresponds to one view in the application. These
   - `call_button`: Display the content text and a button that runs a given command. After the command is run, a confirm button is displayed to allow the user to move to the next step.
   - `call_button_with_input`: Display the content text, an input field and a button that runs a given command. The inputtext, can be used in the command by using the `<inputtext>` placeholder in the command field. After the command is run, a confirm button is displayed to allow the user to move to the next step.
   - `link_button_with_confirm`: Display a button that opens a browser with a given link, confirm afterwards. Link is given in `link`.
+- `img`: [OPTIONAL] Display an image on the left pane of the step view. Images are loaded from `openandroidinstaller/assets/imgs/`.
 - `content`: str; The content text displayed alongside the action of the step. Used to inform the user about whats going on.
+- `link`: [OPTIONAL] Link to use for the link button if type is `link_button_with_confirm`.
 - `command`: [ONLY for call_button* steps] str; The command to run. One of `adb_reboot`, `adb_reboot_bootloader`, `adb_reboot_download`, `adb_sideload`, `adb_twrp_wipe_and_install`, `adb_twrp_copy_partitions`, `fastboot_boot_recovery`, `fastboot_unlock_with_code`, `fastboot_unlock`, `fastboot_oem_unlock`, `fastboot_get_unlock_data`, `fastboot_reboot`, `heimdall_flash_recovery`.
-- `img`: [OPTIONAL] Display an image on the left pane of the step view. Images are loaded from `openandroidinstaller/assets/imgs/`.
 - `allow_skip`: [OPTIONAL] boolean; If a skip button should be displayed to allow skipping this step. Can be useful when the bootloader is already unlocked.
-- `link`: [OPTIONAL] Link to use for the link button if type is `link_button_with_confirm`.
 
-You can also use the `requirements` field in the yaml, to specify `firmware` or `android` version requirements. The user will then be prompted if these requirements are satisfied. 
+**Please try to retain this order of these fields in your config to ensure consistency.**
 
 ### How to build the application for your platform