Organize existing agendas and notes by year (#209)

Author: spawnia

working-group/agendas/2019-11-21.md renamed to working-group/agendas/2019/2019-11-21.md

@@ -6,7 +6,7 @@ This is an open meeting in which anyone in the GraphQL community may attend.
 *To attend this meeting or propose agenda, edit this file.*
 
 - **Recording**: https://zoom.us/rec/play/68YsIumtrT03GYbDtwSDUPV6W464L6Os0XRL-vEFyUi3AHgHZFryY-BHM7b2gWTGmnkzfW2FnDl9CHpd?continueMode=true
-- **Live Notes**: [Notes](2019-12-17-notes.pdf)
+- **Live Notes**: [Notes](../../notes/2019/2019-12-17-notes.pdf)
 - **Date & Time**: [December 17th 2019 19:00 - 21:00 UTC](https://www.timeanddate.com/worldclock/meetingdetails.html?year=2019&month=12&day=17&hour=19&min=0&sec=0&p1=224&p2=179&p3=136&p4=37&p5=239&p6=101&p7=152).
 
   <small>*NOTE:* Meeting date and time may change. Please check this agenda the week of the meeting to confirm.</small>
@@ -56,7 +56,7 @@ Example agenda item:
 1. Review agenda (2m)
 1. Update on moving spec into GraphQL foundation (Ivan, 10m)
 1. [V1 Proposed Roadmap](https://github.com/APIs-guru/graphql-over-http/pull/45) (Sam, 30m)
-1. Review [Implementations](../implementations.md) document (Sam, 10m)
+1. Review [Implementations](../../implementations.md) document (Sam, 10m)
 1. Review Public GraphQL APIs, [PR](https://github.com/APIs-guru/graphql-over-http/pull/44) (Sam, 5m)
 1. Discuss next steps (Sam, 15m)
 1. *ADD YOUR AGENDA ABOVE*