Add note about automation to "Spirit of Guidance" section

[tosbourn]

As an engineer
I want to understand that I should seek to automate basic guidance
So that I can focus on surpassing the guidance

Description

One of the very tangible things we can do to ensure we exceed the baseline of any guidance is to automate that baseline (e.g automated accessibility testing).

We should highlight the need to automate the basic guidances.

Links and resources

Acceptance Criteria

• Include automation in the spirt of guidance section, can be reviewed by @sl33p or @tosbourn