add: subcommand instructions in readme

README.md

@@ -13,6 +13,8 @@ Official Nightwatch helper-tool to easily setup all the requirements needed to g
 - [Mobile app testing](#mobile-app-testing---android)
    - [On Android](#mobile-app-testing---android)
    - [On iOS](#mobile-app-testing---ios)
+- [Do more with Android SDK](#do-more-with-android-sdk)
+- [Run Android SDK binaries](#run-android-sdk-binaries)
 
 ### Mobile web testing - Android
 
@@ -536,3 +538,85 @@ Official Nightwatch helper-tool to easily setup all the requirements needed to g
     # test on real-device (assuming test saved as `test/wikipedia-ios.js`)
     npx nightwatch test/wikipedia-ios.js --env app.ios.real
    ```
+
+### Do more with Android SDK
+
+The tool supports various Android SDK workflows, accessible through the following subcommands:
+
+1. [connect](./docs/subcommands/connect.md)
+2. [list](./docs/subcommands/list.md)
+3. [install](./docs/subcommands/install.md)
+4. [uninstall](./docs/subcommands/uninstall.md)
+
+#### Syntax
+
+The following syntax is used for executing subcommands:
+
+```bash
+npx @nightwatch/mobile-helper android <subcommand> [flags|cliConfigs]
+```
+
+#### 1. Connect a real device or launch an AVD
+
+```sh
+npx @nightwatch/mobile-helper android connect [flags]
+```
+
+
+| Flag       | Description                           |
+| ---------- | ------------------------------------- |
+| --wireless | Connect a real device wirelessly      |
+
+#### 2. List all the connected devices and installed AVDs
+
+```sh
+npx @nightwatch/mobile-helper android list [flags]
+```
+
+| Flag       | Description                                            |
+| ---------- | ------------------------------------------------------ |
+| --device   | Show a list of all the connected real devices and AVDs |
+| --avd      | Show a list of all the currently installed AVDs        |
+
+
+#### 3. Install an APK or create a new AVD
+
+```sh
+npx @nightwatch/mobile-helper android install [flags]
+```
+
+| Flag  | Description                                |
+| ----- | ------------------------------------------ |
+| --app | Install an APK on a real device or an AVD  |
+| --avd | Create a new AVD                           |
+
+
+#### 4. Uninstall an app or delete an AVD
+
+```sh
+npx @nightwatch/mobile-helper android uninstall [flags]
+```
+
+| Flag  | Description                                    |
+| ----- | ---------------------------------------------- |
+| --app | Uninstall an app from a real device or an AVD  |
+| --avd | Delete an AVD                                  |
+
+### Run Android SDK binaries
+
+Easily run Android SDK binaries without needing to locate them manually by using the `mobile-helper` CLI.
+
+**Syntax**
+
+```sh
+npx @nightwatch/mobile-helper android.<binary_name> [args]
+```
+
+**Currenty supported binaries:**
+- adb
+- avdmanager
+- sdkmanager
+- emulator
+
+Check the [docs](./docs/) to know more about using the above binaries.
+