Merge pull request #1245 from ADmad/patch-1

Install "emulator" package too.

Author: etabakov

docs/start/ns-setup-linux.md

@@ -79,7 +79,7 @@ Complete the following steps to set up NativeScript on your Linux development ma
 
 1. Install all packages for the Android SDK Platform 25, Android SDK Build-Tools 27.0.3 or later, Android Support Repository, Google Repository and any other SDKs that you may need. You can alternatively use the following command, which will install all required packages.
 
-    <pre class="add-copy-button"><code class="language-terminal">sudo $ANDROID_HOME/tools/bin/sdkmanager "tools" "platform-tools" "platforms;android-25" "build-tools;27.0.3" "extras;android;m2repository" "extras;google;m2repository"
+    <pre class="add-copy-button"><code class="language-terminal">sudo $ANDROID_HOME/tools/bin/sdkmanager "tools" "emulator" "platform-tools" "platforms;android-25" "build-tools;27.0.3" "extras;android;m2repository" "extras;google;m2repository"
     </code></pre>
 
 1. Setup Android Emulators (AVD) by following the article [here]({%slug android-emulators%})