Static "Q.when()" mentioned but not formally documented.

[i-am-al-x]

The very first paragraph of the API documentation has the following:

For example, Q.when(5, onFulfilled) is equivalent to Q(5).then(onFulfilled).

This is the only mention of "Q.when()". Since the capability is available for use, it should have formal mention within the itemized listing of methods, and so also a formal definition.

[kriskowal]

A PR would be welcome.