Commit d396283b by Achilleas Pipinellis

Merge branch 'valid-html' into 'master'

Use valid HTML in the example

## What does this MR do?

Add a bit more HTML to the example to make it valid HTML5.

## Are there points in the code the reviewer needs to double check?

Nope.

## Why was this MR needed?

The current example is not valid: https://validator.w3.org/nu/?doc=https%3A%2F%2Fpages.gitlab.io%2Fplain-html%2F

## What are the relevant issue numbers?

None.

## Screenshots

### Before

![invalid](/uploads/3df7abeff8e8c2f51a00d9a697c75065/invalid.png)

### After

![valid](/uploads/c38fc2be423ae1fd17ae87efd24936b7/valid.png)


See merge request !11
parents abe84c7b c30bdaf6
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