Add links for synchronized keyword

Additions to some keywords.

Create LICENSE

Reformat and add clarifications to Bitwise Operations section

Fix anchor links to major sections

Merge pull request #1 from DiazHub/patch-1

only top-level classes have this restriction

Update README.md

Update README.md

Update README.md

Update README.md

Update README.md

Update _config.yml

Set theme jekyll-theme-slate

singleton articles