contributors logos added to index screen footer
changed hyperlink to funding anchor - added same for the images
old footer removed for index page
removed little underscores appearing between images - caused by link added to images
DOC: Simpler cross-validation iterator doc
2-fold => 2-fold cross-validation
approximately the same percentage of samples
Remove spurious print statements in sample snippets to make the doc easier to follow
Lowercase y and more consistent blank line usage
fixed visual indentation errors
fix indentation errors
use spaces in indentation
fix indentation
fix E501: line too long
fixed indentation and visual indentation errors
fixed visual indentation errors
fixed indentation and visual indentation errors
fix for 'line too long' warning
pep8 fixes
fix indentation and convert tabs to spaces