Useful pre-reading

[Michael-F-Bryan]

Because this is more of an advanced topic, it's probably a good idea to mention the things which people might also want to know about when going into the tutorial. Then provide a list of useful links to get them started if they need to do some pre-reading.

This was mentioned a bit in #38.

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Some topics I can think of which may be useful:

• Linking, including static vs dynamic linking
• Loading/how the loader resolves symbols from dynamic libraries at load-time
• General compilation process
• What is an object file/executable/archive?
• How to compile a C program manually from the command line (useful for understanding the steps and processes involved)

And some resources:

• Linkers and Loaders (explains the entire process in lots of detail)

For a lot of these, I'll probably point people at wikipedia because that's typically a good starting point.

cc: @gurgalex