Add missing sub-chapters in documentation
-rw-r--r-- 119 .gitignore
-rw-r--r-- 103 .gitreview
-rw-r--r-- 11337 LICENSE
-rw-r--r-- 23712 README.md
-rw-r--r-- 371 book.json
drwxr-xr-x - cmake
drwxr-xr-x - docs
drwxr-xr-x - samples.d
drwxr-xr-x - template.d
drwxr-xr-x - test-widget
drwxr-xr-x - wgt