Rule description S2755 typos

S2755 has a typo and a duplication in the description:

If you must parse untrusted XML, the best way to protect yourself is to use a local, static DTD during parsing and igore any DTD’s included in included in the document.

Also in both the compliant and non compliant code sections there are typos, which make that code not compile:

new FileInputStream(malicousSample)

Hi, thanks a lot for the feedback, I fixed the java description according to your feedback : https://jira.sonarsource.com/browse/RSPEC-2756

This should be fixed with next release of sonar-java plugin.