Notes toward diversity
More notes towards a diversity lecture
A few more links for the diversity lesson
More notes for diversity training
Add allyship tips

@jiffyclub and I came up with some tips on allyship for the diversity lesson.
Add discrimination to thing to call out

In addition to bias and unfairness.
Merge pull request #2 from jiffyclub/patch-2

Add discrimination to thing to call out
added files for testing lesson
Merge pull request #20 from karawoo/patch-1

Add allyship tips
Split 08 SQL notebook into two sections

The current notebook combined adding and dropping tables and changing
the data in existing tables into one long section. These are logically
separate sets of commands and grouping them together created a bit of a
wall of text.
Add Update to SQL lesson on creating and modifying databases

When showing students how to add and remove records it will be natural for
them to ask how to modify an existing record. This demonstrates how to do
this using Update in a few lines.
Removed 'next steps'
commented NaN lines in test
Minor changes to the text based on feedback from users
fixes after reviewe for 04-cond.md
Added author contact details so I can collect usage stats
Minor fixes to 03-func and 04-cond
Add updated markdown version of 08 SQL notebook
Added additional challenge to 04-cond to combine conditional, per discussion with @jdblischak
replaced parameter with argument, identified argument with a defualt value of TRUE, and changed name of argument to use_boxplot