adding a couple more descriptions, and moving the 'make check" step t…

…o the top as its necessary to get through that before you can run things.

README.md

@@ -18,13 +18,23 @@ dependency injection and predictable testing of API integrations.
   above.
 * See [`location_search_page_test.dart`](weather_app/test/location_search/location_search_page_test.dart) for an example test
   with API integration.
+* See [`main.dart`](weather_app/lib/main.dart) for the main app scaffolding.
+* See [`app_pages`](weather_app/lib/app_pages/) for the UI.
 
 ## Dev Environment setup
 
 * Install [Flutter](https://flutter.dev/)
 * Install [Android Studio](https://developer.android.com/studio) with Flutter and Dart plugins
 * Install [XCode](https://developer.apple.com/xcode/) for iOS dev
 
+## Running checks
+
+This checks formatting, runs tests and checks for dependency cycles
+
+```
+make check
+```
+
 ## Running the app
 
 ### On Android Emulator
@@ -49,14 +59,6 @@ dependency injection and predictable testing of API integrations.
 * Select in Android Studio's device list
 * Run `main.dart`
 
-## Running checks
-
-This checks formatting, runs tests and checks for dependency cycles
-
-```
-make check
-```
-
 ### Formatting
 
 We use a line length of `100` characters, which is good enough to show two files side by side on a modern 27 inch