Title
The title tag returns the first <h1>
headline used in the content file. If there is no headline, it uses the file name.
{{ title }}
You can use the title for the HTML <title>
like this:
<title>{{ title }}</title>
And you can of course manipulate the title with a Twig filter like this:
{{ title|title }}
This will display the first character of each word in uppercase.