Improve documentation of integration with Spring

[Airblader]

See the documentation of junitparams. There's a better way to integrate with Spring than writing your own test runner.

Also, the custom runner implemented in the tests has a typo in its name (Sprint…).

[aaschmid]

Hi @Airblader, thanks for this issue and your comments. I adjusted the https://github.com/TNG/junit-dataprovider/wiki/Tips-and-Tricks page and fixed the typo.

Fine for you?

[Airblader]

Yes, thanks!