* Edited previous section and added new sections Edited previous section to be csharp code base and formatted a bit better. Also added new sections about more complex topics of for loops * fix: removed repl.it links * Update index.md
* Edited previous section and added new sections Edited previous section to be csharp code base and formatted a bit better. Also added new sections about more complex topics of for loops * fix: removed repl.it links * Update index.md