Suggestion: mention ssh_init() in "The Tutorial"?

[Mason Hieb <masonbdhieb@xxxxxxxxx>]

 Hi, I'm a complete newbie to this library, and was *really* struggling to
get the tutorial to work for me because I kept getting the "Library Not
Initialized" error but couldn't understand why.

I discovered - after much frustration and searching - that because I'm
statically linking the library, I need to add "ssh_init()" to the start of
my program (and "ssh_finalize()" at the end). The tutorial assumes a
dynamic build.

I humbly recommend, from my newbie perspective, that it might be good to
mention this in Chapter 1 of the tutorial ("if you are using a static
library build of sshlib, then you must add these functions" etc)

Thanks!