new documentation format for std.algorithm

[bearophile]

Andrei:

> Someone mentioned in this thread that leaving all font sizes to default 
> causes the text to be too small.
> 
> The rhetoric is convincing but I'm afraid it can't be properly 
> translated into reality.

There's a step between fixed font sizes and no information about font sizes at all: relative sizes (-1, -2, etc).

Bye,
bearophile