Merge branch 'master' of https://github.com/flutter/website

Author: sfshaza2

src/docs/deployment/cd.md

@@ -46,6 +46,9 @@ delivery from a local machine.
 
 1. Install fastlane `gem install fastlane` or `brew install fastlane`.
 Visit the [fastlane docs][fastlane] for more info.
+1. Create an environment variable named `FLUTTER_ROOT`,
+    and set it to the root directory of your Flutter SDK.
+    (This is required for the scripts that deploy for iOS.)
 1. Create your Flutter project, and when ready, make sure that your project builds via
     * ![Android](/images/cd/android.png) `flutter build appbundle`; and
     * ![iOS](/images/cd/ios.png) `flutter build ios --release --no-codesign`.

src/docs/development/ui/layout/building-adaptive-apps.md

@@ -762,7 +762,7 @@ void _handleKey(event){
      bool isShiftDown = isKeyDown({
         LogicalKeyboardKey.shiftLeft, 
         LogicalKeyboardKey.shiftRight,
-     |);
+     });
      if(isShiftDown && event.logicalKey == LogicalKeyboardKey.keyN){
         _createNewItem();
       }