Documentation for LessThan has some minor errors

[kobelobster]

I found minor errors on the documentation page of the LessThan constraint. http://symfony.com/doc/current/reference/constraints/LessThan.html

Important here are the first two bullet points of the "Basic Usage" chapter, which currently look like this

• The first bullet point contains information which should be only present in the LessThanOrEquals Constraint
• The second bullet point has the number 80, which is not code highlighted, because of a missing space.

I created a PR for this

#8011

[kobelobster]

I did some "research" and find out that this problem occurs on the documentation for the versions:

• 4.0 / master
• 3.4
• 3.3 / current
• 3.2
• 2.8
• 2.7

so basically in every version.

[javiereguiluz]

Closing it as fixed by #8011. @tzfrs thanks for reporting this issue and for fixing it!