Use https: for wikipedia links

[Vladimir Panteleev via Digitalmars-d]

On Monday, 14 December 2015 at 13:47:12 UTC, Andrei Alexandrescu 
wrote:
> One reason for adding WEB is that the ":" confuses ddoc when 
> "http:" is the first word on a line.

Can we fix Ddoc to require a space/newline after the : to 
consider the preceding text a section heading?

> Also, typing it is rather clumsy.

I would argue that links should be pasted from a browser's 
address bar, not typed by hand :) That way you know you're 
pasting a working link.