AB-449 Polish the README.md and add new docs

[ThoSap]

See
https://github.com/aboutbits/postgresql-operator/blob/ab-449-polish-readme-and-docs/README.md

https://github.com/aboutbits/postgresql-operator/blob/ab-449-polish-readme-and-docs/docs/cluster-connection.md
https://github.com/aboutbits/postgresql-operator/blob/ab-449-polish-readme-and-docs/docs/database.md
https://github.com/aboutbits/postgresql-operator/blob/ab-449-polish-readme-and-docs/docs/schema.md
https://github.com/aboutbits/postgresql-operator/blob/ab-449-polish-readme-and-docs/docs/role.md
https://github.com/aboutbits/postgresql-operator/blob/ab-449-polish-readme-and-docs/docs/grant.md
https://github.com/aboutbits/postgresql-operator/blob/ab-449-polish-readme-and-docs/docs/default-privilege.md

https://github.com/aboutbits/postgresql-operator/blob/ab-449-polish-readme-and-docs/docs/docker-environment.md

[linear]

AB-449 PostgreSQL Operator

Based on the research and PoC done in the ticket and PR https://github.com/aboutbits/minio-operator/pull/1

We most likely will use CloudNativePG AB-396 for the DB Setup and this operator to manage the access, e.g. PostgreSQL roles and grants.

The scope of the operator is:

• Database/Schema management
• Role management
• Grant/Default Privilege management

[Copilot]

Pull request overview

This PR polishes the README.md and adds comprehensive documentation for the PostgreSQL Operator's Custom Resource Definitions (CRDs). The changes improve the operator's usability by providing clear documentation and usage examples.

Changes:

• Restructured README.md with improved organization, usage examples, and contribution guidelines
• Added individual documentation files for each CRD (ClusterConnection, Database, Schema, Role, Grant, DefaultPrivilege)
• Moved Docker environment setup instructions to a separate documentation file
• Updated .editorconfig to specify indent size for markdown files

Reviewed changes

Copilot reviewed 9 out of 13 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
README.md	Restructured with usage examples, CRD links, and reorganized contribution/build sections
docs/cluster-connection.md	Added documentation for ClusterConnection CRD with examples and field descriptions
docs/database.md	Added documentation for Database CRD with reclaim policy details
docs/schema.md	Added documentation for Schema CRD with field specifications
docs/role.md	Added documentation for Role CRD including flags, login/no-login roles, and examples
docs/grant.md	Added documentation for Grant CRD with object types and privilege lists
docs/default-privilege.md	Added documentation for DefaultPrivilege CRD with usage examples
docs/docker-environment.md	Moved Docker environment setup instructions from README to dedicated file
.editorconfig	Added indent_size specification for markdown files

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[Copilot]

Pull request overview

Copilot reviewed 9 out of 13 changed files in this pull request and generated 3 comments.

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[Copilot]

Pull request overview

Copilot reviewed 9 out of 13 changed files in this pull request and generated no new comments.

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[alexlanz]

Really nice job!