Multiple languages in one tab

[sheosi]

There are times when you need to use more than one language (mostly because of some configuration system) yet that is not applicable to everything. For example, I'm writing a small wiki in which I show some cli usage, but also how to do certain things in C++, but I also need to use CMake and even .xml because ROS (the system underneath) needs to know our dependencies, and yet none of this is applicable to shell.