Fixed grammar mistake in the Jargon dictionary
Improved vnic description
Merge pull request #3 from axsh/jargon-update

Added some terms to the jargon page
Added backup storage to the jargon dictionary
Merge branch 'master' into backup-guide
Added link to backup storage on the backup guide
Fixed backup object link
Added example output for the grep command
several small rewordings
Added halting image
Added red circle on the refresh button in 03_halting.png
several small rewordings
Some more rewordings and added an extra screenshot