Revise the EDI Tools Documentation

[RDPerera]

Purpose

Minor improvements on the grammar/paragraphs and changed the incorrect library terminology to package.
Resolves #8977, #8974

Checklist

• Page addition

  • Add permalink to pages.

• Page removal

  • Remove entry from corresponding left nav YAML file.
  • Add redirect_from on the alternative page.
  • If no alternative page, add redirection on the redirections.js file.

• Page rename

  • Add front-matter redirect_from.
  • Add front-matter redirect_to: (if applicable).

• Page restrcuture

  • Add permalink to pages.
  • Add front-matter redirect_from.
  • Add front-matter redirect_to: (if applicable).