Update free-programming-interactive-tutorials-en.md (#5373)

* Update free-programming-interactive-tutorials-en.md

Added good resources to learn c#, python, bootstrap, node.js, etc. Please check it, if it is good, keep it in the list.

* Update free-programming-interactive-tutorials-en.md

Arranged lists in alphabetical order and removed tutlane attribute from resources

* Update more/free-programming-interactive-tutorials-en.md

Co-authored-by: David Ordás <[email protected]>

* Update more/free-programming-interactive-tutorials-en.md

Co-authored-by: David Ordás <[email protected]>

* Update more/free-programming-interactive-tutorials-en.md

Co-authored-by: David Ordás <[email protected]>

* Update more/free-programming-interactive-tutorials-en.md

Co-authored-by: David Ordás <[email protected]>

* Update more/free-programming-interactive-tutorials-en.md

Co-authored-by: David Ordás <[email protected]>

* Update more/free-programming-interactive-tutorials-en.md

Co-authored-by: David Ordás <[email protected]>

* Update more/free-programming-interactive-tutorials-en.md

Co-authored-by: David Ordás <[email protected]>

Co-authored-by: Eric Hellman <[email protected]>
Co-authored-by: David Ordás <[email protected]>

Author: 3 people

more/free-programming-interactive-tutorials-en.md

@@ -50,6 +50,7 @@
 
 ### Android
 
+* [Android Tutorial](https://www.tutlane.com/tutorial/android) - tutlane
 * [Javatpoint Android Tutorial](https://www.javatpoint.com/android-tutorial)
 
 
@@ -66,6 +67,7 @@
 
 ### C Sharp
 
+* [C# Tutorial](https://www.tutlane.com/tutorial/csharp) - tutlane
 * [C# Tutorial](https://www.w3schools.com/cs) - W3Schools
 * [Codeasy](https://codeasy.net/course/csharp_elementary)
 * [Learn C#](http://www.learncs.org)
@@ -157,6 +159,7 @@
 
 #### Bootstrap
 
+* [Bootstrap Tutorial](https://www.tutlane.com/tutorial/bootstrap) - tutlane
 * [Front End Libraries: Bootstrap](https://www.freecodecamp.org/learn/front-end-libraries/bootstrap)
 
 
@@ -192,6 +195,7 @@
 * [Angular Basics](http://www.angularjsbook.com)
 * [Angular Tutorial](https://www.w3schools.com/angular/) - W3Schools
 * [AngularJS - Step by Logical Step](http://nicholasjohnson.com/angular-book/)
+* [AngularJS Tutorial](https://www.tutlane.com/tutorial/angularjs) - tutlane
 * [egghead.io: Learn AngularJS with Tutorial Videos & Training](https://egghead.io)
 * [Learn AngularJS with free interactive lessons](http://www.learn-angular.org)
 
@@ -244,6 +248,7 @@
 ### Node
 
 * [Node School](http://nodeschool.io)
+* [Node.js Tutorial](https://www.tutlane.com/tutorial/nodejs) - tutlane
 * [Node.js Tutorial](https://www.w3schools.com/nodejs) - W3Schools
 
 
@@ -284,6 +289,7 @@
 * [Python for Everybody - Interactive](https://runestone.academy/runestone/books/published/py4e-int/index.html) - Barbara Ericson
 * [Python Koans](https://github.com/gregmalcolm/python_koans)
 * [Python Pandas Tutorial: A Complete Introduction for Beginners](https://www.learndatasci.com/tutorials/python-pandas-tutorial-complete-introduction-for-beginners/) - George McIntire, Brendan Martin, Lauren Washington
+* [Python Tutorial](https://www.tutlane.com/tutorial/python) - tutlane
 * [Python Tutorial](https://www.w3schools.com/python) - W3Schools
 
 
@@ -315,6 +321,7 @@
 
 * [Intro to SQL: Querying and managing data](https://www.khanacademy.org/computing/computer-programming/sql) - Khan Academy
 * [SQL at Codecademy](https://www.codecademy.com/courses/learn-sql)
+* [SQL Server Tutorial](https://www.tutlane.com/tutorial/sql-server) - tutlane
 * [SQL Tutorial](https://www.w3schools.com/sql) - W3Schools
 * [SQLBolt](http://sqlbolt.com)