Docs fixes

* Fix the template in Getting Started to feature the latest version of jQuery, as per #14852
* Fix the modal documentation to mention the correct deprecation version (3.3.0 instead of the nonexistent 3.2.1).
I feel like I'm missing something here :(
1.11.1 isn't really >=1.9.1. Shouldn't the template still be changed to 1.9.1?