Getting Started Update for CLUE!

[vandyliu]

AB#34303

Description:

• Changed name of CPX from "CPX" to "Circuit Playground Express" to be consistent with command pallet
• Updated indentation of code blocks to 4 spaces instead of 2 spaces
• Added step 5 for micro:bit
• Added entire section for CLUE
  
• Any and all opinions welcomed!

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

Limitations:

Please describe limitations of this PR

Testing:

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A
• Test B

Checklist:

• My code follows the style guidelines of this project
• My code has been formatted with npm run format and passes the checks in npm run check
• 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
• Any dependent changes have been merged and published in downstream modules

[xnkevinnguyen]

Awesome work! Thanks for helping me with this

[andreamah]

The page looks great! (●'◡'●)

[isadorasophia]

Cool! 😁

[xnkevinnguyen]

LGTM