* tutorial: adds note about onClick
* tutorial: show full square component
* merge
* fixes line number
* tutorial: misc changes
* fixes Board render initial code sample
* [tutorial] adds codepen links and misc small fixes
* removes useless arrow functions, #9531
* {this.renderSquare} new lines
* be more explicit about history state
* fixes highlight
* following along locally
* changes todo to this.props.value
* removes calculateWinner from initial codepens and includes it in tutorial
* removes note about calculateWinner at end of file
* adds debug-view and debug-view-final
* removes debug view, updates codepen instructions
* adds another codepen
* tutorial.md
* tutorial.md
* tutorial.md
* tutorial.md
* Put . into links for consistency with docs
* Make the very first change easier to follow
* A few more changes