Guide: Hello, cargo
Add a note that this requires `git`.
Fix capitalization of Issue.

@chris-morgan and @huonw pointed out that even though the feature
is a proper noun, we're using it in a more generic sense here.
tha -> than

Thanks @huonw :heart:
all/some

How could I forsake `rustdoc`? :sweat_smile:

Thanks @huonw.
staticly -> statically

What's funny about this one is that spellcheck caught it, but for
some reason didn't give me the right suggestion, so I assumed that it
wasn't in my dictionary. Oh well.

Thanks @P1start! :heart:
Fix IRC linkage.

Death to `here`!

Thanks @chris-morgan :heart:
StackOverflow -> Stack Overflow

Thanks @chris-morgan
Fixing link to subreddit.

Thanks @chris-morgan :heart:
Move note about $ up

Thanks @chris-morgan :heart:
TIL PATHEXT

Thanks @chris-morgan :heart:
Clarify which curly is being referred to

Thanks @chris-morgan
Note that macros != templates

Good call, @chris-morgan and @cmr!
Fix missing word and some grammar

Thanks @chris-morgan and @P1start! :heart:
C macros, not C++ templates.

@cmr rightfully points out that C macros are worse, and share the
same name.
Fix windows run instructions

Thank you, @stormbrew!
Add one more ignore.

Thanks @huonw
auto merge of #15183 : steveklabnik/rust/hello_cargo, r=huonw

Built on top of https://github.com/rust-lang/rust/pull/15181. https://github.com/steveklabnik/rust/commit/e52719291183d7b4f691a1997c69fd75b8101b07 is the only new commit, you may want to review that separately.

I'm not sure if the car analogy is too glib.