Merge pull request #304 from github/advanced-summaries Advanced summaries

Merge pull request #294 from github/fix-warnings Fix warnings, resolve missing layouts, remove deprecated content

Merge pull request #288 from github/styling-refresh Update style, tidy custom components

Merge pull request #286 from randomecho/intermed-reading-flow Remove one AND from Details intro to stop a run-on sentence.

Merge pull request #244 from github/js-fine-tuning JavaScript tune up, logic improvements

Release script tests for build success 

Merge pull request #100 from github/found-int-workbook-tuning Foundations, Intermediate Workbook content tuning

Merge pull request #98 from github/cheat-sheet-ja Add JA Translation of Git Cheat Sheet

Update grammer and small text formatting 

Update PDF to latest content release