Merge branch 'haskell'

Add haskell help in the code guide.

Guides/code.md

@@ -0,0 +1,21 @@
+# Code
+
+Guide to install languages, IDE and configure them.
+
+## Haskell
+
+### Compiler
+
+`sudo apt install ghc`
+
+### Package manager
+
+`sudo apt install cabage-install`
+
+`cabage --help`
+
+`cabage list 'random'`
+
+### Install _random_ package
+
+`cabage install random`