Change Bad/Better/Best to Bad/Bad/Good
Change Bad/Better/Best to Bad/Bad/Good

- This commit concerns the document's comparison of 3 approaches to default values.
  - Conditionals
  - Short-Circuiting
  - Default Arguments

- In my original pull request, I ordered these from bad to best:
  - Conditionals (Bad)
  - Short-Circuiting (Better)
  - Default Arguments (Best)

- In this commit, I am rephrasing the **Bad/Better/Best** ordering scheme to **Bad/Bad/Good** because:
  - The rest of the document uses the **Bad/Good** format.
  - We should use *consistent language* throughout the document.
DavidVujic/clean-code-javascript,greg-dev/clean-code-javascript-pl,HemantPawar/clean-code-javascript,andersontr15/clean-code-javascript-es,chux0519/clean-code-javascript,ryanmcdermott/clean-code-javascript