centering the bottom div
Merge branch 'gh-pages' of github.com:vstarostenko/soteria into gh-pages

* 'gh-pages' of github.com:vstarostenko/soteria: (84 commits)
  Made a new change
  Made front-end changes
  Added zoom effect on charts
  changed images
  changed images
  changed images
  Updated the PreProcessing notebook and the Similarity_Comparison notebook
  added actors plot
  similar attacks file added
  mrjob 2 csv added
  Added new cell in SoteriaPreprocssing notebook to perform similarity comparison
  Modified main notebook to be in a format of a story. Wrote code to take care of attributes with elipses, changing them to underscores. Modified JSON object to include attributes which used to have elipses.
  Modified main notebook to be in a format of a story. Wrote code to take care of attributes with elipses, changing them to underscores. Modified JSON object to include attributes which used to have elipses.
  added aws credentials file
  final presentation chagnes
  keynote file updated
  presentation changes
  more presentation changes
  presentation pdf added
  presentation changes
  ...