Updated references to pub.dev and flutter.dev

Updated references to pub.dev and flutter.dev

Author: Robert Felker

source.md

@@ -1,4 +1,4 @@
-[<img src="https://user-images.githubusercontent.com/1295961/45949308-cbb2f680-bffb-11e8-8054-28c35ed6d132.png" align="center" width="850">](http://flutter.io)
+[<img src="https://user-images.githubusercontent.com/1295961/45949308-cbb2f680-bffb-11e8-8054-28c35ed6d132.png" align="center" width="850">](https://flutter.dev/)
 
 <p align="center">
   <a href="https://stackoverflow.com/questions/tagged/flutter?sort=votes">
@@ -18,7 +18,7 @@
 
 </p>
 
-<a href="https://flutter.io/">Flutter</a> is a mobile app SDK for building high-performance, high-fidelity, apps for iOS and Android, from a single codebase.
+<a href="https://flutter.dev/">Flutter</a> is a mobile app SDK for building high-performance, high-fidelity, apps for iOS and Android, from a single codebase.
 
 If you appreciate the content 📖, support projects visibility, give 👍| ⭐| 👏
 
@@ -301,7 +301,7 @@ If you appreciate the content 📖, support projects visibility, give 👍| ⭐|
 
 ### Monetization
 
-- [Admob](https://pub.dartlang.org/packages/admob) - GoogleAdmob supports interstitial ads in both iOS and Android by Brett Nesbitt
+- [Admob](https://pub.dev/packages/admob) - GoogleAdmob supports interstitial ads in both iOS and Android by Brett Nesbitt
 - [Firebase AdMob](https://github.com/flutter/plugins/tree/master/packages/firebase_admob) - Ad integration using Firebase
 - [Billing](https://github.com/VolodymyrLykhonis/flutter_billing) <!--stargazers:VolodymyrLykhonis/flutter_billing--> - Enable billing on iOS and Android by [Volodymyr Lykhonis](http://vladimirlichonos.com)
 - [Payments](https://github.com/pplante/flutter_payments) <!--stargazers:pplante/flutter_payments--> - In App Purchases & Subscriptions by [Delightful Goods](https://delightfulgoods.co)
@@ -351,15 +351,15 @@ If you appreciate the content 📖, support projects visibility, give 👍| ⭐|
 
 ## Plugins
 
-- [Pub Plugins](https://pub.dartlang.org/flutter/plugins) - Plugins filter in Dart Pub Repository.
+- [Pub packages](https://pub.dev/flutter/packages) - Packages filter in Dart Pub Repository.
 - [Plugins](https://github.com/flutter/plugins/tree/master/packages) - Official Flutter Team Plugins
 
 ### Device
 
 - [WebView](https://github.com/dart-flitter/flutter_webview_plugin) <!--stargazers:dart-flitter/flutter_webview_plugin--> - Render web content by [Hadrien Lejard](https://twitter.com/HadrienLejard)
 - [Location](https://github.com/Lyokone/flutterlocation) <!--stargazers:Lyokone/flutterlocation--> - Handle location, handling callbacks to get continuous location by [Lyokone](https://github.com/Lyokone)
-- [Battery](https://pub.dartlang.org/packages/battery) - Access various information about the battery.
-- [Proximity Sensor Plugin](https://pub.dartlang.org/packages/proximity_plugin) - A plugin to access the proximity sensor of your device by [Manoj NB](https://github.com/Samaritan1011001)
+- [Battery](https://pub.dev/packages/battery) - Access various information about the battery.
+- [Proximity Sensor Plugin](https://pub.dev/packages/proximity_plugin) - A plugin to access the proximity sensor of your device by [Manoj NB](https://github.com/Samaritan1011001)
 - [Geolocation](https://github.com/loup-v/geolocation) <!--stargazers:loup-v/geolocation--> - Fully featured geolocation plugin: current location, location updates, geocode, places and more by [Loup](http://intheloup.io)
 - [Local Notifications](https://github.com/MaikuB/flutter_local_notifications) <!--stargazers:MaikuB/flutter_local_notifications--> - Plugin for displaying local notifications by [Michael Bui](https://github.com/MaikuB)
 - [Device Calendar](https://github.com/builttoroam/flutter_plugins/tree/develop/device_calendar) - Plugin for modifying calendars on the user's device by [Built to Roam](http://builttoroam.com)
@@ -393,7 +393,7 @@ If you appreciate the content 📖, support projects visibility, give 👍| ⭐|
 ### Services
 
 - [Dialogflow](https://github.com/VictorRancesCode/flutter_dialogflow) <!--stargazers:VictorRancesCode/flutter_dialogflow--> - Plugin to easily integrate with dialogflow by [Victor Rances](https://github.com/VictorRancesCode/)
-- [Intercom](https://pub.dartlang.org/packages/intercom) <!--stargazers:ChangeFinance/intercom_flutter--> - Add Intercom integration to your app by [Maido Kaara](https://github.com/v3rm0n)
+- [Intercom](https://pub.dev/packages/intercom) <!--stargazers:ChangeFinance/intercom_flutter--> - Add Intercom integration to your app by [Maido Kaara](https://github.com/v3rm0n)
 - [OneSignal](https://github.com/OneSignal/OneSignal-Flutter-SDK) <!--stargazers:OneSignal/OneSignal-Flutter-SDK--> - Push notification service by [OneSignal](https://github.com/OneSignal)
 - [Place Dialog](https://github.com/pinkfish/flutter_places_dialog) <!--stargazers:pinkfish/flutter_places_dialog--> - Places picker dialog returning the places to the app by [David Bennett](https://github.com/pinkfish)
 - [App Rating](https://github.com/AppleEducate/app_review) <!--stargazers:AppleEducate/app_review--> - Requesting and Writing Reviews for the App Store and Google Play by [Rody Davis](http://appleeducate.com)