Update weekly audits

[wvmitchell]

Activity to be updated: Weekly Audits Document

Summary of changes needed:

• Activities for "Classes" and "Unit Testing Classes" should be removed
• Any topic that is taking the place of those (if applicable), should have an associated audit activity

[hfaerber]

• removed classes audit from Doc
• marked classes audit as (retired)
• deleted class reference question from Data Model vs DOM audit
• Removed Unit Testing Classes audit from Doc
• marked Unit Testing Classes audit as retired
• Adding Pure Functions audit

[hfaerber]

Please review the Pure Functions audit's questions and provided answers.

Currently I've placed the Pure Functions audit under Week 5. It may need to be moved based on where we insert that lesson.

[CassandraGoose]

Love the 'red flags' question so much.

Is Example 3 supposed to be a different code snipped? It looks like it's the 'fruit' example again.

[hfaerber]

Oh boy! Thanks for catching that Cass! I've switched it out with the correct example. Moving to Merged To Development since this is easily, infinitely iterable.