[es] New Scala section with 2 book
Merge pull request #792 from esparta/master

[es] New Scala section with 2 book
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Merge pull request #793 from msdundar/patch-1

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[en] Added a .NET book
[en] Ording .Net section
Merge pull request #794 from esparta/master

[en] New book on .NET section & sorting
[en] Added CS240h: Functional Systems in Haskell
Merge pull request #795 from guillaume-nargeot/master

[en] Added CS240h: Functional Systems in Haskell