doc: subcommand usage workflows (#69)

Co-authored-by: Priyansh Garg <[email protected]>

docs/subcommands/connect.md

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+## Workflows of the `connect` subcommand
+
+**Syntax**
+```sh
+npx @nightwatch/mobile-helper android connect FLAG [configs]
+```
+
+### 1. Connect a real device wirelessly
+
+> Note: Only devices with Android version 11 or higher are supported.
+
+Run the below command to connect to a real device wirelessly:
+```sh
+npx @nightwatch/mobile-helper android connect --wireless
+```

docs/subcommands/install.md

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+## Workflows of the `install` subcommand
+
+**Syntax**
+```sh
+npx @nightwatch/mobile-helper android install FLAG [configs]
+```
+
+### 1. Install an APK
+
+Run the below command to install an APK on a real device or an AVD:
+
+```sh
+npx @nightwatch/mobile-helper android install --app
+
+# with configs
+npx @nightwatch/mobile-helper android install --app [--deviceId <device_id>] [--path <path_to_apk>]
+```
+
+**Configs**
+
+| Config                         | Description                                                    |
+| ------------------------------ | -------------------------------------------------------------- |
+| --deviceId \| -s <device_id>   | Id of the device to install the APK to                         |
+| --path \| -p <path_to_apk>     | Path to the APK file relative to the current working directory |
+
+### 2. Create a new Android Virtual Device
+
+Run the below command to create a new AVD:
+
+```sh
+npx @nightwatch/mobile-helper android install --avd
+```

docs/subcommands/list.md

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+## Workflows of the `list` subcommand
+
+**Syntax**
+
+```sh
+npx @nightwatch/mobile-helper android list [flags]
+```
+
+### 1. Show a list of connected devices
+
+Run the below command to show a list of all the connected real devices and running AVDs:
+
+```sh
+npx @nightwatch/mobile-helper android list --device 
+```
+
+### 2. Show a list of installed AVDs
+
+Run the below command to show a list of all the currently installed AVDs
+
+```sh
+npx @nightwatch/mobile-helper android list --avd
+```

docs/subcommands/uninstall.md

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+## Workflows of the `uninstall` subcommand
+
+**Syntax**
+
+```sh
+npx @nightwatch/mobile-helper android uninstall FLAG [configs]
+```
+
+### 1. Delete an Android Virtual Device (AVD)
+
+Run the below command to delete an AVD:
+
+```sh
+npx @nightwatch/mobile-helper android uninstall --avd
+```