diff --git a/source.md b/source.md
index dfc0bea..95c4053 100644
--- a/source.md
+++ b/source.md
@@ -64,12 +64,12 @@ Support project visibility, give a ⭐[![GitHub stars](https://img.shields.io/gi
 
 ### Howtos
 
-- [Zero to One Flutter Animation](https://medium.com/dartlang/zero-to-one-with-flutter-part-two-5aa2f06655cb) - Focus on animation by [Mikkel Ravn](https://medium.com/@mravn).
+- [Zero to One Flutter Animation](https://medium.com/dartlang/zero-to-one-with-flutter-part-two-5aa2f06655cb) <!--claps:dartlang/zero-to-one-with-flutter-part-two-5aa2f06655cb-->  - Focus on animation by [Mikkel Ravn](https://medium.com/@mravn).
 - [Google Cloud Functions](https://rominirani.com/tutorial-flutter-app-powered-by-google-cloud-functions-3eab0df5f957) - Flutter App powered by Google Cloud Functions by [Romin Irani](https://rominirani.com/@iromin).
 - [Firebase](https://www.youtube.com/watch?v=p4yLzYwy_4g) - Firebase live coding.
-- [Securing Flutter Apps](https://medium.com/@mehmetf_71205/securing-flutter-apps-ada13e806a69) - By Mehmet Fidanboylu.
-- [Build your plugins](https://medium.com/@KarthikPonnam/build-your-own-plugin-for-flutter-cfee1a08ea3a) - How to make a custom plug-in for Flutter by [Karthik Ponnam](https://medium.com/@KarthikPonnam).
-- [Build Flavor](https://medium.com/@salvatoregiordanoo/flavoring-flutter-392aaa875f36) - Define build configurations and switch them by [Salvatore Giordano](https://medium.com/@salvatoregiordanoo).
+- [Securing Flutter Apps](https://medium.com/@mehmetf_71205/securing-flutter-apps-ada13e806a69) <!--claps:@mehmetf_71205/securing-flutter-apps-ada13e806a69--> - By Mehmet Fidanboylu.
+- [Build your plugins](https://medium.com/@KarthikPonnam/build-your-own-plugin-for-flutter-cfee1a08ea3a) <!--claps:@KarthikPonnam/build-your-own-plugin-for-flutter-cfee1a08ea3a--> - How to make a custom plug-in for Flutter by [Karthik Ponnam](https://medium.com/@KarthikPonnam).
+- [Build Flavor](https://medium.com/@salvatoregiordanoo/flavoring-flutter-392aaa875f36) <!--claps:@salvatoregiordanoo/flavoring-flutter-392aaa875f36--> - Define build configurations and switch them by [Salvatore Giordano](https://medium.com/@salvatoregiordanoo).
 
 ### Websites / Blogs
 
@@ -139,7 +139,7 @@ Support project visibility, give a ⭐[![GitHub stars](https://img.shields.io/gi
 - [Flutter Login](https://github.com/AppleEducate/flutter_login) <!--stargazers:AppleEducate/flutter_login--> - FaceID, TouchID, and Fingerprint Reader by [Rody Davis](http://appleeducate.com).
 - [Google Sign-In](https://github.com/flutter/plugins/tree/master/packages/google_sign_in) - Google OAuth.
 - [Firebase Auth](https://github.com/flutter/plugins/tree/master/packages/firebase_auth) - Firebase OAuth.
-- [Facebook Auth](https://medium.com/@segaud.kevin/facebook-oauth-login-flow-with-flutter-9adb717c9f2e) - Facebook OAuth by [Kevin Segaud](https://twitter.com/kevin_segaud).
+- [Facebook Auth](https://medium.com/@segaud.kevin/facebook-oauth-login-flow-with-flutter-9adb717c9f2e) <!--claps:@segaud.kevin/facebook-oauth-login-flow-with-flutter-9adb717c9f2e--> - Facebook OAuth by [Kevin Segaud](https://twitter.com/kevin_segaud).
 - [Flutter OAuth](https://github.com/hitherejoe/FlutterOAuth) <!--stargazers:hitherejoe/FlutterOAuth--> - Buffer, Strava, Unsplash, Github OAuth by [Joe Birch](http://www.hitherejoe.com).
 - [Instagram](https://hackernoon.com/instagram-authentication-with-flutter-df6424d2d56c) - Instagram auth by [Wilfried Mbouenda Mbogne](http://developer-journey.com/).
 - [Slack OAuth](https://github.com/Kunstmaan/flutter_slack_oauth) or [Slack OAuth Firebase](https://github.com/Kunstmaan/flutter_slack_oauth_firebase) <!--stargazers:Kunstmaan/flutter_slack_oauth_firebase--> - Slack OAuth, optionally with Firebase Auth and Cloud Firestore integration.
@@ -162,9 +162,9 @@ Support project visibility, give a ⭐[![GitHub stars](https://img.shields.io/gi
 #### Build automation
 
 - [Travis CI for Flutter](https://github.com/yjbanov/flutter_travis_sample) <!--stargazers:yjbanov/flutter_travis_sample--> - Continuous integration by [Yegor Jbanov](https://twitter.com/yegorjbanov).
-- [Test Flutter on Travis](https://medium.com/@yegorj/test-flutter-apps-on-travis-3fd5142ecd8c) - Widget testing framework by [Yegor Jbanov](https://twitter.com/yegorjbanov).
-- [Building Apks/Ipas on Travis](https://medium.com/@yegorj/building-flutter-apks-and-ipas-on-travis-98d84d8e9b4) - Automated build for Android and IOS by [Yegor Jbanov](https://twitter.com/yegorjbanov).
-- [BitRise](https://medium.com/@karol.wrotniak/how-to-create-bitrise-step-in-go-flutter-example-668cf4db1fd2) - Create Bitrise Step in Go by [Karol Wrótniak](https://medium.com/@karol.wrotniak).
+- [Test Flutter on Travis](https://medium.com/@yegorj/test-flutter-apps-on-travis-3fd5142ecd8c) <!--claps:@yegorj/test-flutter-apps-on-travis-3fd5142ecd8c--> - Widget testing framework by [Yegor Jbanov](https://twitter.com/yegorjbanov).
+- [Building Apks/Ipas on Travis](https://medium.com/@yegorj/building-flutter-apks-and-ipas-on-travis-98d84d8e9b4) <!--claps:@yegorj/building-flutter-apks-and-ipas-on-travis-98d84d8e9b4--> - Automated build for Android and IOS by [Yegor Jbanov](https://twitter.com/yegorjbanov).
+- [BitRise](https://medium.com/@karol.wrotniak/how-to-create-bitrise-step-in-go-flutter-example-668cf4db1fd2) <!--claps:@karol.wrotniak/how-to-create-bitrise-step-in-go-flutter-example-668cf4db1fd2--> - Create Bitrise Step in Go by [Karol Wrótniak](https://medium.com/@karol.wrotniak).
 
 ### Styling