Define the release process

[afrittoli]

Document what entails making a new release for CDEvents.
Some aspects to consider:

• versioning of the spec
• planning and aligning SDKs
• updates to examples and POCs
• website documentation
• announcements, blog posts etc

[elmsdata]

Hey @afrittoli! Been digging into the release process and how to best automate this for each release and so far I am reviewing two capabilities:

1. Github changelog release process
2. Changesets an open source capability, backed by Atlassian, to help improve packaging, changelogs and publishing new version of a package. It's mainly used for NPM so will continue to research how its used by other repositories!