Tweak Release Exercises

We don't always ask the questions that are there and we often cover
ones that aren't currently in the slides. This patch bring the questions
more in line with the information we normally walk though.

Change-Id: I6262f4a3b04c8998040e6e057105fd3e1f7d8a9f

doc/upstream-training/source/slides/howitsmade-release-cycle.rst

@@ -19,40 +19,34 @@ Learning Exercise
 Exercise 1
 ==========
 
-- Look up the release schedule for the current and past two OpenStack
-  release cycles & share links
-- Identify common characteristics of these cycles
+- How many release models are there?
+- Which two models are most OpenStack projects following?
 
 Exercise 2
 ==========
 
-- How many release models are there?
-- Describe and contrast them
+- How long are OpenStack releases 'Maintained' by the community?
+- What action is done on 'Maintained' branches but not branches that are
+  in 'Extended Maintenance'?
 
 Exercise 3
 ==========
 
-- How many OpenStack releases are currently maintained by the community?
-- Post the information on the IRC channel
+- Look up the release schedule for the current active and previous OpenStack
+  release cycles and share the link in the etherpad
+- What are the focuses for the three milestones?
 
 Exercise 4
 ==========
 
-- Find some of the feature proposal freeze deadlines in the current release
-  schedule
-- Compare the deadlines between two different project teams and discuss the
-  differences with your group
-- Why are there different dates for some teams?
+- Compare the different deadlines for different project activities that
+  are on the release schedules
+- Why are there different dates for some teams and no dates
+  for others?
 
 Exercise 5
 ==========
 
-- What are some of the different freeze dates for different activities
-  in the release?
-
-Exercise 6
-==========
-
 - Find the release week for the current release
 - Why is there a whole week and not a single day planned?
 - Find where the currently released code is posted