Initial pass add DPR Emulation section
Add advantages to device mode.
Updated contributing docs with section on keeping updated at crbug
remote debug. direct usb cable connection.
rename overview page to include DevTools keyword
optimize images.
Added link and embed of the Memory Management Masterclass
Merge pull request #155 from Garbee/memory-profiling

Added link and embed of the Memory Management Masterclass
Update javascript-memory-profiling.md

bigger link text
Merge pull request #153 from Garbee/hotfix/contributing

Updated contributing docs with section on keeping updated at crbug
Ensure correct formatting of CLI examples.
Merge pull request #157 from braddunbar/cli-examples

Ensure correct formatting of CLI examples.
Merge pull request #150 from Garbee/device-mode

Initial pass add DPR Emulation section
Merge pull request #146 from Garbee/dm-advantages

Add advantages to device mode.