* initial structure
* add to affinity guide
* add to affinity guide
* update affinity guide
* spread guide
* update content
* update step 3 to spread stanza
* update
* add wording to motivate the use of spread and affinity
* improve guide description and use clearer wording to distinguish constrain from affinity
* clarify challenge to user with specific example
* improve wording in the solution section
* incorporate rest of suggestions into affinity guide
* modify spread guide description
* improve wording of spread docs
* change instance count from 5 to 10 to more easily show spread
* improving spread guide and changing demo architecture
* motivate spread a bit more
* clarification about spread
* fix wording
