annotation docs should document how to set data types other than strings

I added some examples of other data types, added a note about using "\" before classes. Just need confirmation that the examples used and the note about classes are okay.

Seems to have some CC failure but @joachim this along the lines you were thinking?

LGTM.

Just wanted to point out this issue was tagged novice. With DrupalCon this week it would of been a good ticket for new users. @sourabhjain looking at your posts, 1000+, you seem to have the knowledge to work on non novice issues. What's done is done but just wanted to point out. Thanks

Thanks for working to improve the documentation!

I'm triaging RTBC issues → . I read the IS and the comments. I didn't find any unanswered questions.

I reviewed the change and it does demonstrate the different data types which is great. But it should be a working example. Instead, it is a combination of ContentyEntityType and FieldType and things like the description do not match. I found it confusing to read. Let's change this to be consistent. Thanks.