Keeping the "Newcomers" wiki page alive

[Jan Stolarek]

Last year Richard created a wiki page for newcomers:

  https://ghc.haskell.org/trac/ghc/wiki/Newcomers

One of assumptions was to store a list of low hanging fruits that newcomers can tackle:

  https://ghc.haskell.org/trac/ghc/wiki/Newcomers#Fixingabug

But that list is far from exhaustive. Here's where your help is needed. Please remember that this 
page exists and whenever you report or encounter a simple bug or feature request please add it to 
the list on Newcomers page. Thanks.

Janek