Adds 2021-06-15 UA String Minutes (#150)

* Issue #146 - Adds UA String Reduction Minutes Index

* 2021-06-15 UA string minutes

uastring/minutes/2021-06-15-minutes.md

@@ -0,0 +1,39 @@
+# [Minutes] UA String Reduction - 2021-06-05
+
+## Attendees:
+
+* Karl Dubost, Mozilla
+* Mike Taylor, Google
+
+## Minutes
+
+### Administrivia
+mike: Where do we keep the minutes?
+
+karl: On the [repo](https://github.com/whatwg/compat/blob/main/uastring/minutes)
+
+## What should be working on
+
+karl: [@cpeterso](https://github.com/cpeterso) has created a document for Firefox (not public yet), where he's documenting pros and cons of UA freezing/reduction. A lot of these things could be generalized beyond Mozilla. There are things that could be copied and used
+
+mike: Should we start with list of pro/cons? or should we start documenting user agent structure?
+
+karl: Probably we should do both.Understanding the "theory" of UA string. There are a lot of things in common in there, to the point you wonder why it's still there, for example `Mozilla/5.0`. This is worth being documented. We could also document the things you had done in firefox -- a bit of the history and evolution (there is a public google doc somewhere)
+
+mike: I was getting the UA client hints ready for the TAG, and there's a good [explainer in there](https://github.com/WICG/ua-client-hints#use-cases). It has information on what people use. The origin was to motivate what API could be built with regards to this information. It's very similar to the blog post karl wrote [about user agent detection cases](https://www.otsukare.info/2014/03/31/ua-detection-use-cases). We can take the best pieces of this and make sure everything is covered
+
+mike: we can meet again in a couple of weeks. Let's work on this. We can invite people to participate. let's use markdown files to start. We can consolidate later.
+
+karl: **I will start with UA detection use cases**
+
+mike: **I will start with structure of user agent strings.**
+
+## Next Meeting
+
+[July 7, 2021 10:00 JST](https://www.timeanddate.com/worldclock/meetingdetails.html?year=2021&month=7&day=7&hour=1&min=0&sec=0&p1=248&p2=43&p3=224)
+
+Let's invite [Chris Peterson](https://github.com/cpeterso) (Mozilla)
+
+## Post-Scriptum
+
+[If— By Rudyard Kipling](https://www.poetryfoundation.org/poems/46473/if---)

uastring/minutes/index.md

@@ -1,3 +1,6 @@
 # UA String Reduction Work Minutes
 
 This is the space for recording publicly the work we are doing around UA string reductions
+
+## 2021
+* [June 15, 2021 Minutes](./2021-06-15-minutes.md)