The rules are quite simple.
Whenever you open an issue, start issue title with SLNIM-#:, where # denotes the number of issue (this is not to be confused with GitHub numbering, since that numbering also includes pull requests). So, if the latest issue has a number SLNIM-13, you name the issue like SLNIM-14: Bump mockito.
However, if you just have a question, omit the numbering!
Before you open a pull request, always open an issue first! After that, you open a pull request which should be named the same as issue, with SLNIM-#: the same as the issue of course.