Problems related website

[Salih Dincer]

Hi,

Is it necessary to open a PR for problems with the website?  For 
example, part 2 of the first example is out of scope:

https://dlang.org/library/std/bitmanip/bit_array.this.html

I made the out of scope example more readable but who will update 
it?

```d
void main()
{
     import std.bitmanip;
     import std.stdio;
     import std.algorithm.comparison : equal;
     import std.array : array;
     import std.range : iota, repeat;

     BitArray a = true.repeat(70).array;
     writeln(a.length); // 70
     assert(a.bitsSet.equal(iota(0, 70)));

     size_t[] source = [1, 2, 3, 3424234, 724398, 230947, 389492];
     enum sbits = size_t.sizeof * 8;
     auto ba = BitArray(source, source.length * sbits);
     foreach (n; 0 .. source.length * sbits)
     {
         const mask = 1L << (n % sbits);
         const index = n / sbits;
         auto nth_bit = source[index] & mask;
         assert(ba[n] == cast(bool)nth_bit);
     }
}
```

SDB at 79