* Update SC2 setup guide
Removed a sentence that made sense when I included sudo in the command in the previous sentence, but does not make sense otherwise.
* Update en_Super Mario 64.md
It turns out castle has a lowercase l in it.
- Added bolded note that one must use a new file with each new seed
- Added troubleshooting section for when one didn't use a new file
- Worded compilation step 8 more explicitly
- Added link to compilation options list
- Added link to TextClient for using commands