BIP3: Rename Created to Assigned

[murchandamus]

Renames the “Created” header to “Assigned” to better reflect the meaning of the date held in this header field.

[ajtowns]

Sounds good, ack.

[jonatack]

LGTM

[jonatack]

nit, this is described in line 149 below, but it costs only two words here to make the prescribed values clear at first glance without searching for further context

Suggested change

	Assigned: <Date of number assignment (yyyy-mm-dd), or "?">
	Assigned: <Date of number assignment (yyyy-mm-dd), or "?" before assignment>

[jonatack]

Would it also be acceptable (or preferable) to leave no value prior to assignment? e.g. Assigned:

[jonatack]

Note that scripts/buildtable.pl will need to be updated when this change is made across the BIPs.

[murchandamus]

Thanks, I will be adding that to #1820.

Would it also be acceptable (or preferable) to leave no value prior to assignment? e.g. Assigned:

I think I would prefer it to have a value, but the preference is weakly held.

[jonatack]

ACK, couple nits

[jonatack]

Suggested change

	[^assigned]: **Why was the Created header renamed to Assigned?**
	[^assigned]: **Why was the Created header renamed to Assigned?**

[murchandamus]

Double space at the end of a line is markdown for linebreak, which puts the response on a separate line from the question.

[murchandamus]

@jonatack, @ajtowns: I have addressed all comments