[Content Refactor] Polkadot FAQ Page

[CrackTheCode016]

Which page(s)? Please link them below.

• Polkadot FAQ: http://education.web3.foundation/docs/polkadotFAQ

What needs to be addressed?

Ideally, the following seems appropriate:

1. Divide FAQ into sections
2. Each section dominates a portion of the sidebar
3. Address questions relating to education, where to find dev resources, and other.