What is the source of the quote above?  I feel like it should come after this sentence, something like:

```markdown
Parallelization is improved by managing a *per-channel* data structure, rather than relying on the
Go runtime's *global* timer scheduler and its *global* lock:

> Internally, the Go runtime uses a single priority queue and goroutine
> to manage timers. This supports (but is not limited to) the entirety of the `time` package. It
> normally obviates the need for a *user-land* time-ordered priority queue but it's
> important to keep in mind that it's a *single* data structure with a *single* lock, potentially
> impacting `GOMAXPROCS > 1` performance.  See [runtime/time.goc][runtime_time].
```

Also, it would probably be good to link to the source of the quote.