An Epic

[nedbat]

• This is a thing to do #114
• then do this.
• Also this thing #116
• Create a docker image for local testing openedx/openedx-webhooks#160
• feat: GITHUB_BLENDED_PROJECT for blended pull requests openedx/openedx-webhooks#186

These are more things to do:

• Add tests for graphql_query() openedx/openedx-webhooks#184
• Update openedx-webhooks to not mention repo-tools-data openedx/openedx-webhooks#171
• Something else that needs to get done. #117
• Show Becca how to do the thing. #118

[nedbat]

• Update openedx-webhooks to not mention repo-tools-data openedx/openedx-webhooks#171