Improve initialization code block.

[thomasheartman]

Description

Add syntax highlighting and spacing to initialization code block.

It seems all other code blocks have syntax highlighting, but not this one, even if it's the most involved example on the page.

Also: add some newlines to make it easier to see what's going on.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Readme update

How Has This Been Tested?

Manual test via checking the other branch confirms that the code block is now syntax-highlighted and more spaced out:

The current version looks like this:

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[coveralls]

Coverage remained the same at 96.97% when pulling a615c12 on thomasheartman-patch-1 into cd396b4 on master.

[chriswk]

TIL I learned that the triple backtick language also works with capitalised language name :)

LGTM