Titanium has a mailing list. Feel free to join it and ask any questions you may have.
To subscribe for announcements of releases, important changes and so on, please follow @ClojureWerkz on Twitter.
If you find a bug, poor default, missing feature or find any part of the API inconvenient, please file an issue on Github. If possible, try to explain what behavior you expected and why. Bonus points for contributing failing test cases.
Titanium uses Leiningen 2. Make sure you have it installed and then run tests against supported Clojure versions using
lein2 all test
Then create a branch and make your changes on it. Once you are done with your changes and all tests pass, submit a pull request on Github.
Let us know what was unclear or what has not been covered. Reader feedback is key to making the documentation better. If we know people are reading the documentation, we'll be much more inclined to make the documentation that much better. Please speak up!