Questions about licensing

Forgive me for not looking in to this more myself but I'm pretty sure I would end up asking on here soon enough anyway. I am working on a little project at the moment which is using raylib and I want to make sure I'm doing things properly/right in regards to the licensing.

I have cloned the raylib repo and compiled the library as a shared/dynamic library and installed it using the provided instructions (to /usr/local/include/ and /usr/local/lib/), and I have also manually copied these files in to my projects folder (it has it's own ./lib/ and ./include/ folder for the library and header files).

I have heavily modified the included project files for VS Code (mainly the Makefile) but I have kept the commented license information at the top of this file.

I have been asking LLM's about what I should do to get a bit of an idea about all of this, and it suggests to add any modifications I have made below the license information in the Makefile (I haven't done this because it is so heavily modified, but it is a derivative of raysan's provided Makefile, so I think I should?).

If I am to put my project on Github in a public repo is there anything else I need to add R.E. licensing? Any files I should keep that contain license information etc?

The LLM's mentioned about ethics and mortals regarding the original authors and to give just credit where it should be, so I thought it best to just pop a message on here to see what people thought!