Fix typo
Wording
Lowercase folder name to match hyperlinks
gitbook config
Start fleshing out gitbook summary based on current Thoughtworks help
Fix links
Remove duplicated TOCs
Fix image references
Localise a few images to the user docs
Fixing inline hyperlinks
Remove spurious messages
Add some pages to the build
Remove duplicate link
Add configuration reference to the build
Copy paragraph on gitbook from dev to user docs for clarity
Apostrophe nazi
Fixing more links
Adding more pages to the build
Delete apparently duplicate page (with introduction/index)
Fixed lots of links, added missing pages to build