Fix typo
Fix typo
Update output of passwd command

Full output indicates success.
Update ping output
Update list of home directory contents

Latest Pies have an extra file (the Pi logo) which will show in ls.
Merge remote-tracking branch 'upstream/master'
Fix text to match instructions

Text says that the user is in /usr/bin, but instructions are:

cd /
cd bin

So the user will actually be in /bin
Fix typo
Fix punctuation
Fix quake filename
Use consistent capitalisation