HiddenServiceDir -- documentation (& bug)

We should update the hidden service documentation page to show a correct example path for the HiddenServiceDir on Windows 7. Something like _C:\Users\username\tor\hidden_service_ might be a better option (C:\Documents and Settings is not accessible, and AppData is a hidden directory by default).

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information