documentation updates
Style changes for inline images.
Calibration tutorial.
Several changes in general calibration doc.
Added first draft of inference.
Add FAQ
using greepnplum with deepdive
update coming soon pages
add features page
slight wording change
Add inference rule function reference.
initialize Greenplum documentation
Slight modification on greenplum doc
Modify Greenplum doc format for code
Added link for greenplum in Alpha page
Merge pull request #41 from zifeishan/gh-pages

Added Documentation for GreenPlum
small changes to the greenplum install guide
Merge remote-tracking branch 'upstream/gh-pages' into gh-pages
Adding distant supervision, relation extraction, and negative examples tutorials.
Adding distant supervision, relation extraction, and negative examples tutorials.