Can combine this with the solutions PR if needed. This is a draft of PS3, some revising to do, but for now. Switched the structure such that tabs for problems and solutions are both included, with solutions unavailable till we add the code and release them -- figured this would be iteratively easier. Happy to change it back if we think it's better otherwise.
Can combine this with the solutions PR if needed. This is a draft of PS3, some revising to do, but for now. Switched the structure such that tabs for problems and solutions are both included, with solutions unavailable till we add the code and release them -- figured this would be iteratively easier. Happy to change it back if we think it's better otherwise.