Spellchecked, cleaned, and Edit API section expanded

Added to edit api, fixed queryset example code, stubbed out Page ref

Some cleanup of the edit api doc

Some cleanup of the frontend doc

Added to edit api docs

Added to edit api docs
Merge pull request #262 from jeffrey-hearn/docs-rev-1

Docs revisions (spelling fixes, queryset examples, expansion of Editing API and Page class reference)