added an image file

image for putty quick start guid
pointed to correct image file

Signed-off-by: goarnaut <goarnaut@yahoo.com>
renamed image file, amended text file

used proper syntax for image filename, and put the  new name in the text
changed filenames

changed two filenames to proper syntax
Merge pull request #71 from TekHus/Basic-Guides

Renamed files
Merge pull request #535 from KevWright/master

Renamed files