Edited all sections up excluding AS and Addons
Minor changes in styling
Changes in Dash, Cloud and AS chapters
Minor changes in formatting
More work on AS chapter
More sections from AS chapter
Finished proofreading AS chapter
Edited Autothrottle section in Addons chapter
Finished proofreading Addons chapter
Minor corrections in several chapters
Checked the index page
Merge pull request #4 from serhiy-yasko/master

A Proofread Version of ScrapingHub Documentation Chapters