Added table for mobile network emulation parameters.
Removed empty paragraph element. Originally had the table caption for mobile network emualtion but was forgotten.
Updated readme links to go to developer.chrome.com
Updated image links for docs/elements.html so they don't 404.
Merge pull request #87 from Garbee/mobile-emulation

Mobile emulation table
Merge pull request #88 from Garbee/readme

Updated readme links to go to developer.chrome.com
readme images updated

thanks for them @garbee.  fixes #89
Merge pull request #90 from Garbee/elements-images

Updated image links for docs/elements.html so they don't 404.