apostrophe characters issues in tutorial

[ewot]

The apostrophe characters has been replaced by the html escape sequence ' on some places within the tutorial code blocks. For example:

• https://angulardart.org/tutorial/03-ch01-creating-your-first-app.html, in the mustache example for foobar
• https://angulardart.org/tutorial/04-ch02-component.html, in the selector on @component example

[metatron-the-chronicler]

It is in some other places too along with some mismatched p tags

https://angulardart.org/tutorial/05-ch03-component.html