Summary: The old link 404s. This is the new canonical location.
Reviewed By: IanChilds
Differential Revision: D9131447
fbshipit-source-id: 77b82a4184fff89faf1da76e922a5f1ce3de3314
Summary:
**what is the change?:**
Adding a document linking to the Facebook Open Source Code of Conduct,
for visibility and to meet Github community standards.
**why make this change?:**
Facebook Open Source provides a Code of Conduct statement for all
projects to follow.
Exposing the COC via a separate markdown file is a standard being
promoted by Github via the Community Profile in order to meet their Open
Source Guide's recommended community standards.
As you can see, adding this file will complete [Yoga's Community Profile](https://github.com/facebook/yoga/community)
checklist and increase the visibility of our COC.
We also added a link to the COC in the CONTRIBUTING doc because folks may miss the separate CODE_OF_CONDUCT document.
**test plan:**
Viewing it on my branch -


**issue:**
internal task t23481323
Closes https://github.com/facebook/yoga/pull/670
Reviewed By: emilsjolander
Differential Revision: D6384655
Pulled By: flarnie
fbshipit-source-id: 6c5557094719cc8f1b08deb4d477ab56603caf39