New issue template development for TI updates

[sevansdell]

The TAC would like to work with PMO staff member to create an issue template for TIs to attach their TAC update slides to in advance of the TAC call in which they provide an update so the TAC can review it asynch prior to the TAC call. Please and thank you!

[Amir-Montazery]

added link to "Identifying Critical Projects" markdown page. link to page: https://github.com/ossf/wg-securing-critical-projects/blob/main/Initiatives/Identifying-Critical-Projects.md

[Amir-Montazery]

I suggest closing this issue. Link has been updated as requested.

[jhult]

For any looking at this issue, the above GitHub link is broken. The link is now located here: https://github.com/ossf/wg-securing-critical-projects/blob/main/Initiatives/Identifying-Critical-Projects/Readme.md