fix(docs): missing line breaks in why-base page

[ichaichai]

Path: /base-chain/quickstart/why-base

Page: https://docs.base.org/base-chain/quickstart/why-base
File: docs/base-chain/quickstart/why-base.mdx

Description

Two bullet list items are missing a trailing newline, causing them to run directly into the next paragraph with no space or line break.

Occurrence 1 — "A platform for building innovative apps" section:

• Accept payments from anyone, easilyIt's fast, cheap, and permissionless...

Occurrence 2 — "Expansive developer tools" section:

• Robust developer toolingBut there’s more: Base apps can be launched...

Suggested fix

Add a blank line after each affected bullet to separate the list from the following paragraph. For example:

- Accept payments from anyone, easily

It's fast, cheap, and permissionless...