[Feedback] Conan Essentials - Runtime Linking

I believe the course has not quite correct information about the runtime linking.
In the slide it shows the line that imports `so` file to the `bin` directory and the narrator mentions that by default linker will look into the directory, but it's, in fact, only the default behaviour on Windows, not Linux! For Linux you'd need to point the `LD_LIBRARY_PATH` to the bin directory.

The runtime linking is a hard problem and I believe creating a section on it would be useful to help users on the border between Linux system programming and "user-space" C++ programming with Conan.

Review the course slide and narration covering runtime linking, especially the `so` file in `bin` and Linux `LD_LIBRARY_PATH` behavior. Confirm the platform distinction and update the material; done means the existing explanation is corrected and the proposed runtime-linking guidance is included.

Written by the indexing model from the issue text.