Reading for content; editing for consistency.

Update hacking.md

Update jenkins.md

Update civilint.md

Reading for content; editing for consistency.

Update cividist.md

Update civibuild.md

Update buildkit.md

Update buildkit.md

Update index.md

Update phpstorm.md

Update skills.md

Reading for content; editing for consistency.

Reading for content; editing for consistency.

Update requirements.md

Update community.md

Reading for content; editing for consistency.

Reading for content; editing for consistency.

Reading for content; editing for consistency.

Clarify Nodejs instruction line.

Reading for content; editing for consistency.

Reading for content; editing for consistency.

Reading for content, updating for consistency (and minor changes for emphasis and clarity).

Reading for content; editing for consistency.

Reading for content; editing for consistency.

Update buildkit.md

Edit to paragraph format rather than short lines.

Update hacking.md

Revised edit to link to dev-docs/basics material for talking with CiviCRM developer community.  Thanks, Sean.

Update index.md

Minor edits to the text that make is more consistent from paragraph to paragraph.

Document how to load new Settings metadata

Add example of PSR-4 autoloading within extensions

Typo

Fix broken link