Getting Started: list zsh before bash in macOS guide (#3358)

Co-authored-by: Nicola Corti <corti.nico@gmail.com>

docs/_getting-started-macos-android.md

@@ -73,17 +73,15 @@ Finally, click "Apply" to download and install the Android SDK and related build
 
 The React Native tools require some environment variables to be set up in order to build apps with native code.
 
-Add the following lines to your `$HOME/.bash_profile` or `$HOME/.bashrc` (if you are using `zsh` then `~/.zprofile` or `~/.zshrc`) config file:
+Add the following lines to your `~/.zprofile` or `~/.zshrc` (if you are using `bash`, then `~/.bash_profile` or `~/.bashrc`) config file:
 
 ```shell
 export ANDROID_SDK_ROOT=$HOME/Library/Android/sdk
 export PATH=$PATH:$ANDROID_SDK_ROOT/emulator
 export PATH=$PATH:$ANDROID_SDK_ROOT/platform-tools
 ```
 
-> `.bash_profile` is specific to `bash`. If you're using another shell, you will need to edit the appropriate shell-specific config file.
-
-Type `source $HOME/.bash_profile` for `bash` or `source $HOME/.zprofile` to load the config into your current shell. Verify that ANDROID_SDK_ROOT has been set by running `echo $ANDROID_SDK_ROOT` and the appropriate directories have been added to your path by running `echo $PATH`.
+Run `source ~/.zprofile` (or `source ~/.bash_profile` for `bash`) to load the config into your current shell. Verify that ANDROID_SDK_ROOT has been set by running `echo $ANDROID_SDK_ROOT` and the appropriate directories have been added to your path by running `echo $PATH`.
 
 > Please make sure you use the correct Android SDK path. You can find the actual location of the SDK in the Android Studio "Preferences" dialog, under **Appearance & Behavior** → **System Settings** → **Android SDK**.