Improve Docs: Must Have Package Loaded

[andreweatherman]

Turns out that you need to have ncaahoopR loaded in your session for the functions to not return an error. This is because the code does not namespace its own functions (i.e. dict$ESPN_PBP in get_pbp_game). This affects nearly every function in the package. Maybe this can be listed somewhere in the documentation -- to be sure that the package is loaded inside your environment before running it. ncaahoopR::get_pbp_game(...) will not work.

[lbenz730]

Thanks let me see if i can just namespace my own functions, if not i'll update the docs.