Results 2 issues of Simon Briche

Hi, In my tests I had an issue with the content of the 'alt' attribute (unicode) of the 'img' tag added in the image function. This is causing an infinite...

I think that since this [commit](https://github.com/coveooss/json-schema-for-humans/commit/0956d85eca2bc69cb7d6fabd30dfc0b6f4179191#diff-bcc1fe7fcc9f4072f631b8ede0129112a761a424f502885f78a2d9ec4eecf356R108) and the addition of `markupsafe_escape` all the HTML tags in the descriptions aren't rendered anymore, at least in the `js` template. I understand that...