Update issue templates

Updated task tracking issue to add time est and point of contact to facilitate uptake by the DA team.

.github/ISSUE_TEMPLATE/18f-team--basic-issue-tracking-template.md

@@ -12,14 +12,24 @@ Before you submit your new issue, add labels so that we know which guide/site th
 While it might seem redundant, we have one team that manages issues across multiple products, and these labels help us keep our wires straight! 
 _______________________________________________________
 
-
 **Background**
 _What should we consider when addressing this issue?_
 
+### Point of contact on this issue
+Who can folks follow-up with if we have questions?
+
 **Acceptance criteria _(we'll know we're done when…)_** 
 - [ ] 
 - [ ] 
 
+**Timeline**
+Does this need to happen in the next two weeks?
+
+- [ ] Yes
+- [ ] No
+
+How much time do you anticipate this work taking?
+
 **Tasks**
 - [ ] ...
 - [ ] ...