add issue template for working group call agendas

.github/ISSUE_TEMPLATE/agenda.yml

@@ -0,0 +1,44 @@
+---
+name: Working Group Meeting Agenda
+about: Use this template to create a new meeting agenda.
+title: "Working Group Call #X"
+labels: mtg-agenda
+---
+
+## Meeting Details
+
+- **Date/Time:** Month Date, Year @ 4:00pm UTC / 12:00pm ET
+- **Location:** Link will be posted in ``#governance` working group channel [on Discord](https://community.blockstack.org/discord) shortly before the call.
+- **Recording:** TBA
+- **Moderator:** TBA
+- **Secretary:** TBA
+- **Publisher:** TBA
+
+## Standup Updates
+
+**What happened over the past two weeks? Standup!**
+- What is everyone working on right now?
+- Any blockers?
+- What will happen over the next two weeks?
+
+## Stacks Foundation Updates
+
+See issues with the label `mtg-stxfoundation` for more info.
+
+https://github.com/stacksgov/pm/labels/mtg-stacksfoundation
+
+## Action Items
+
+See issues with the label `mtg-action` for more info.
+
+https://github.com/stacksgov/pm/labels/mtg-action
+
+## Discussion Items
+
+See issues with the label `mtg-discussion` for more info.
+
+https://github.com/stacksgov/pm/labels/mtg-discussion
+
+## Miscellaneous Items
+
+Feel free to list out and add additional items below!