The first step is, that you need to change the extension key. You can do it by simply changing the folder name to the new key. Example: sg_oracle_business_intelligence => sg_timeline
Now you need to replace the following occourences:
Search in your project for the "@todo frontend_plugin:" comments and solve them.
This files are used:
- Entry in composer json of Project root: "sgalinski/sg-timeline": "dev-master"
- Add Typoscript in Project Theme Aggregate
- Remove the content from this README and insert your own stuff, like installation or configuration instructions.