* Update gold release date and features

* Diagram that shows FW & HW support for main md

* Simplified nGraph architecture for CPU

* Complex architecture diagram for all backends

* Replace

* Add ngraph stack diagram with FW and HW support

* relocate

* Relocate

* Replace stack diagram with NNP-L & NNP-I

* Updated copy and removed the disclaimer

* Removed "more detailed" sentence

* Update README.md

* Fixed sentence

* Update README.md

* nGraph logo small version

* Update README.md

* Added logo

* nGraph logo smallest version

* nGraph logo with header

* Update README.md

* Delete ngraph_logo_header.png

* nGraph logo with header

* Update README.md

* nGraph header on the main repo page

* Added header

* nGraph architecture simplified for CPU

* nGraph architecture complex

* Added architecture simple architecture diagram

* Modified the full stack diagram

* nGraph architecture simple diagram with padding

* Added padding to simple architecture image

* Update ABOUT.md

* Add new logo to doc landpage

* Fix typo